New Defender's Study Bible Notes
16:18 Pride. Pride was the primeval sin of Satan before his fall (I Timothy 3:6). Note I Corinthians 10:12.
16:18 an haughty spirit. This is the middle verse of the book of Proverbs, and surely presents a vital truth. Although the sin of pride is not named as such in the Ten Commandments, it is implied in the very first (“no other gods before me”).