Bible Verses about “euphemisms”

“And Abraham said unto his eldest servant of his house, that ruled over all that he had, Put, I pray thee, thy hand under my thigh:”

“Behind the doors also and the posts hast thou set up thy remembrance: for thou hast discovered [thyself to another] than me, and art gone up; thou hast enlarged thy bed, and made thee [a covenant] with them; thou lovedst their bed where thou sawest [it].”