Midrasch zu Mischlej 7:18

9) And (Iyyov 39:13): "knaf renanim ne'elassah" ("The knaf renanim [a kind of bird] ne'elassah" [acronymically]): noseh (it carries [its egg]), oleh (it goes up [to its nest]), umithchateh (and drops it in.) And (Proverbs 7:18): "Nithalssa ba'ahavim," (acronymically): Nissa venitan (Let us consort), vena'aleh (and let us go up [to bed]), venithchatah ba'ahavim (and immerse ourselves in love). And (Bamidbar 22:32): "ki yarat haderech lenegdi," (acronymically): yarathah (it feared), ra'athah (it saw), nat'thah (it turned aside).