diff --git a/activerecord/lib/active_record/validations/absence.rb b/activerecord/lib/active_record/validations/absence.rb
index 6afb9eabd2b..b37457a8b1b 100644
--- a/activerecord/lib/active_record/validations/absence.rb
+++ b/activerecord/lib/active_record/validations/absence.rb
@@ -14,7 +14,7 @@ module ActiveRecord
     module ClassMethods
       # Validates that the specified attributes are not present (as defined by
       # Object#present?). If the attribute is an association, the associated object
-      # is considered absent if it was marked for destruction.
+      # is also considered not present if it is marked for destruction.
       #
       # See ActiveModel::Validations::HelperMethods.validates_absence_of for more information.
       def validates_absence_of(*attr_names)
diff --git a/activerecord/lib/active_record/validations/presence.rb b/activerecord/lib/active_record/validations/presence.rb
index 743608a7c8e..335792b45cc 100644
--- a/activerecord/lib/active_record/validations/presence.rb
+++ b/activerecord/lib/active_record/validations/presence.rb
@@ -13,9 +13,8 @@ module ActiveRecord
 
     module ClassMethods
       # Validates that the specified attributes are not blank (as defined by
-      # Object#blank?), and, if the attribute is an association, that the
-      # associated object is not marked for destruction. Happens by default
-      # on save.
+      # Object#blank?). If the attribute is an association, the associated object
+      # is also considered blank if it is marked for destruction.
       #
       #   class Person < ActiveRecord::Base
       #     has_one :face
@@ -25,41 +24,19 @@ module ActiveRecord
       # The face attribute must be in the object and it cannot be blank or marked
       # for destruction.
       #
-      # If you want to validate the presence of a boolean field (where the real values
-      # are true and false), you will want to use
-      # <tt>validates_inclusion_of :field_name, in: [true, false]</tt>.
-      #
-      # This is due to the way Object#blank? handles boolean values:
-      # <tt>false.blank? # => true</tt>.
-      #
       # This validator defers to the Active Model validation for presence, adding the
       # check to see that an associated object is not marked for destruction. This
       # prevents the parent object from validating successfully and saving, which then
       # deletes the associated object, thus putting the parent object into an invalid
       # state.
       #
+      # See ActiveModel::Validations::HelperMethods.validates_presence_of for
+      # more information.
+      #
       # NOTE: This validation will not fail while using it with an association
       # if the latter was assigned but not valid. If you want to ensure that
       # it is both present and valid, you also need to use
       # {validates_associated}[rdoc-ref:Validations::ClassMethods#validates_associated].
-      #
-      # Configuration options:
-      # * <tt>:message</tt> - A custom error message (default is: "can't be blank").
-      # * <tt>:on</tt> - Specifies the contexts where this validation is active.
-      #   Runs in all validation contexts by default +nil+. You can pass a symbol
-      #   or an array of symbols. (e.g. <tt>on: :create</tt> or
-      #   <tt>on: :custom_validation_context</tt> or
-      #   <tt>on: [:create, :custom_validation_context]</tt>)
-      # * <tt>:if</tt> - Specifies a method, proc, or string to call to determine if
-      #   the validation should occur (e.g. <tt>if: :allow_validation</tt>, or
-      #   <tt>if: Proc.new { |user| user.signup_step > 2 }</tt>). The method, proc
-      #   or string should return or evaluate to a +true+ or +false+ value.
-      # * <tt>:unless</tt> - Specifies a method, proc, or string to call to determine
-      #   if the validation should not occur (e.g. <tt>unless: :skip_validation</tt>,
-      #   or <tt>unless: Proc.new { |user| user.signup_step <= 2 }</tt>). The method,
-      #   proc or string should return or evaluate to a +true+ or +false+ value.
-      # * <tt>:strict</tt> - Specifies whether validation should be strict.
-      #   See ActiveModel::Validations#validates! for more information.
       def validates_presence_of(*attr_names)
         validates_with PresenceValidator, _merge_attributes(attr_names)
       end