Albert Barnes Commentary Proverbs 23:5

"Wilt thou set thine eyes upon that which is not? For [riches] certainly make themselves wings, Like an eagle that flieth toward heaven." — Proverbs 23:5 (ASV)

Set your eyes - literally, as in the margin, that is, “gaze eagerly upon;” and then we get an emphatic parallelism with the words that follow, they fly away as an eagle toward heaven; certainly make themselves wings.