diff --git a/Library/Homebrew/cask/audit.rb b/Library/Homebrew/cask/audit.rb
index da142f6820..4d20b6a909 100644
--- a/Library/Homebrew/cask/audit.rb
+++ b/Library/Homebrew/cask/audit.rb
@@ -416,7 +416,7 @@ module Cask
       return unless verified_matches_url?
 
       add_error "The URL's domain #{domain} matches the homepage domain #{homepage}, " \
-                "the `verified` parameter of the `url` stanza is unnecessary. " \
+                "the 'verified' parameter of the 'url' stanza is unnecessary. " \
                 "See https://github.com/Homebrew/homebrew-cask/blob/master/doc/cask_language_reference/stanzas/url.md#when-url-and-homepage-hostnames-differ-add-verified"
     end
 
@@ -427,7 +427,7 @@ module Cask
       return if verified_present?
 
       add_error "The URL's domain #{domain} does not match the homepage domain #{homepage}, " \
-                "a `verified` parameter has to be added to the `url` stanza. " \
+                "a 'verified' parameter has to be added to the 'url' stanza. " \
                 "See https://github.com/Homebrew/homebrew-cask/blob/master/doc/cask_language_reference/stanzas/url.md#when-url-and-homepage-hostnames-differ-add-verified"
     end
 
diff --git a/Library/Homebrew/cask/cmd/upgrade.rb b/Library/Homebrew/cask/cmd/upgrade.rb
index 3d711f4a82..a0d0ecb98c 100644
--- a/Library/Homebrew/cask/cmd/upgrade.rb
+++ b/Library/Homebrew/cask/cmd/upgrade.rb
@@ -101,7 +101,7 @@ module Cask
         return false if outdated_casks.empty?
 
         if casks.empty? && !greedy
-          ohai "Casks with `auto_updates` or `version :latest` will not be upgraded; pass `--greedy` to upgrade them."
+          ohai "Casks with 'auto_updates' or 'version :latest' will not be upgraded; pass `--greedy` to upgrade them."
         end
 
         verb = dry_run ? "Would upgrade" : "Upgrading"
diff --git a/Library/Homebrew/exceptions.rb b/Library/Homebrew/exceptions.rb
index 2ae9494b99..3c277e20c4 100644
--- a/Library/Homebrew/exceptions.rb
+++ b/Library/Homebrew/exceptions.rb
@@ -384,8 +384,8 @@ class FormulaUnknownPythonError < RuntimeError
       The version of Python to use with the virtualenv in the `#{formula.full_name}` formula
       cannot be guessed automatically because a recognised Python dependency could not be found.
 
-      If you are using a non-standard Python depedency, please add `:using => "python@x.y"` to
-      `virtualenv_install_with_resources` to resolve the issue manually.
+      If you are using a non-standard Python dependency, please add `:using => "python@x.y"`
+      to 'virtualenv_install_with_resources' to resolve the issue manually.
     EOS
   end
 end
@@ -394,10 +394,11 @@ end
 class FormulaAmbiguousPythonError < RuntimeError
   def initialize(formula)
     super <<~EOS
-      The version of python to use with the virtualenv in the `#{formula.full_name}` formula
-      cannot be guessed automatically. If the simultaneous use of multiple pythons
-      is intentional, please add `:using => "python@x.y"` to
-      `virtualenv_install_with_resources` to resolve the ambiguity manually.
+      The version of Python to use with the virtualenv in the `#{formula.full_name}` formula
+      cannot be guessed automatically.
+
+      If the simultaneous use of multiple Pythons is intentional, please add `:using => "python@x.y"`
+      to 'virtualenv_install_with_resources' to resolve the ambiguity manually.
     EOS
   end
 end
diff --git a/Library/Homebrew/extend/on_os.rb b/Library/Homebrew/extend/on_os.rb
index a30a241d3b..5bf551fe59 100644
--- a/Library/Homebrew/extend/on_os.rb
+++ b/Library/Homebrew/extend/on_os.rb
@@ -7,7 +7,7 @@ module OnOS
   # # Do something Mac-specific
   # end</pre>
   def on_macos(&block)
-    raise "No block content defined for on_macos block" unless block
+    raise "No block content defined for 'on_macos' block" unless block
   end
 
   # Block only executed on Linux. No-op on macOS.
@@ -15,7 +15,7 @@ module OnOS
   # # Do something Linux-specific
   # end</pre>
   def on_linux(&block)
-    raise "No block content defined for on_linux block" unless block
+    raise "No block content defined for 'on_linux' block" unless block
   end
 end
 
diff --git a/Library/Homebrew/extend/os/linux/on_os.rb b/Library/Homebrew/extend/os/linux/on_os.rb
index d1bbbab734..433d8b111b 100644
--- a/Library/Homebrew/extend/os/linux/on_os.rb
+++ b/Library/Homebrew/extend/os/linux/on_os.rb
@@ -3,7 +3,7 @@
 
 module OnOS
   def on_linux(&block)
-    raise "No block content defined for on_linux block" unless block
+    raise "No block content defined for 'on_linux' block" unless block
 
     yield
   end
diff --git a/Library/Homebrew/extend/os/mac/on_os.rb b/Library/Homebrew/extend/os/mac/on_os.rb
index f043909555..e3f71dbd10 100644
--- a/Library/Homebrew/extend/os/mac/on_os.rb
+++ b/Library/Homebrew/extend/os/mac/on_os.rb
@@ -3,7 +3,7 @@
 
 module OnOS
   def on_macos(&block)
-    raise "No block content defined for on_macos block" unless block
+    raise "No block content defined for 'on_macos' block" unless block
 
     yield
   end
diff --git a/Library/Homebrew/formula_auditor.rb b/Library/Homebrew/formula_auditor.rb
index 68deb02245..0925fb3182 100644
--- a/Library/Homebrew/formula_auditor.rb
+++ b/Library/Homebrew/formula_auditor.rb
@@ -221,13 +221,13 @@ module Homebrew
             # Don't complain about missing cross-tap dependencies
             next
           rescue FormulaUnavailableError
-            problem "Can't find dependency #{dep.name.inspect}."
+            problem "Can't find dependency '#{dep.name.inspect}'."
             next
           rescue TapFormulaAmbiguityError
-            problem "Ambiguous dependency #{dep.name.inspect}."
+            problem "Ambiguous dependency '#{dep.name.inspect}'."
             next
           rescue TapFormulaWithOldnameAmbiguityError
-            problem "Ambiguous oldname dependency #{dep.name.inspect}."
+            problem "Ambiguous oldname dependency '#{dep.name.inspect}'."
             next
           end
 
@@ -258,10 +258,10 @@ module Homebrew
               end
             end
 
-            problem "Dependency #{dep} does not define option #{opt.name.inspect}"
+            problem "Dependency '#{dep}' does not define option #{opt.name.inspect}"
           end
 
-          problem "Don't use git as a dependency (it's always available)" if @new_formula && dep.name == "git"
+          problem "Don't use 'git' as a dependency (it's always available)" if @new_formula && dep.name == "git"
 
           problem "Dependency '#{dep.name}' is marked as :run. Remove :run; it is a no-op." if dep.tags.include?(:run)
 
diff --git a/Library/Homebrew/formula_installer.rb b/Library/Homebrew/formula_installer.rb
index 8722df1f67..510a7f4e46 100644
--- a/Library/Homebrew/formula_installer.rb
+++ b/Library/Homebrew/formula_installer.rb
@@ -806,7 +806,7 @@ class FormulaInstaller
     fix_dynamic_linkage(keg) if !@poured_bottle || !formula.bottle_specification.skip_relocation?
 
     if build_bottle?
-      ohai "Not running post_install as we're building a bottle"
+      ohai "Not running 'post_install' as we're building a bottle"
       puts "You can run it manually using:"
       puts "  brew postinstall #{formula.full_name}"
     else
diff --git a/Library/Homebrew/software_spec.rb b/Library/Homebrew/software_spec.rb
index 1d029e2aab..6512856afa 100644
--- a/Library/Homebrew/software_spec.rb
+++ b/Library/Homebrew/software_spec.rb
@@ -356,7 +356,7 @@ class BottleSpecification
     if [HOMEBREW_DEFAULT_PREFIX,
         HOMEBREW_MACOS_ARM_DEFAULT_PREFIX,
         HOMEBREW_LINUX_DEFAULT_PREFIX].exclude?(prefix)
-      odeprecated "setting `prefix` for bottles"
+      odeprecated "setting 'prefix' for bottles"
     end
     @prefix = prefix
   end
diff --git a/Library/Homebrew/test/cask/audit_spec.rb b/Library/Homebrew/test/cask/audit_spec.rb
index 6303db5ae9..4912e3885a 100644
--- a/Library/Homebrew/test/cask/audit_spec.rb
+++ b/Library/Homebrew/test/cask/audit_spec.rb
@@ -917,7 +917,7 @@ describe Cask::Audit, :cask do
         RUBY
       end
 
-      it { is_expected.to fail_with(/a `verified` parameter has to be added/) }
+      it { is_expected.to fail_with(/a 'verified' parameter has to be added/) }
     end
 
     context "when the url does not match the homepage with verified" do
diff --git a/Library/Homebrew/utils/ast.rb b/Library/Homebrew/utils/ast.rb
index fc320039e0..bc4e389b23 100644
--- a/Library/Homebrew/utils/ast.rb
+++ b/Library/Homebrew/utils/ast.rb
@@ -117,7 +117,7 @@ module Utils
       sig { params(name: Symbol, replacement: T.any(Numeric, String, Symbol), type: T.nilable(Symbol)).void }
       def replace_stanza(name, replacement, type: nil)
         stanza_node = stanza(name, type: type)
-        raise "Could not find `#{name}` stanza!" if stanza_node.blank?
+        raise "Could not find '#{name}' stanza!" if stanza_node.blank?
 
         tree_rewriter.replace(stanza_node.source_range, stanza_text(name, replacement, indent: 2).lstrip)
       end