“Every word of God is tested; He is a shield to those who take refuge in Him. Do not add to His words or He will reprove you, and you will be proved a liar.” – Proverbs 30:5-6 (NASB)
These are “the words of Agur the son of Jakeh the oracle.” We can only suggest that Agur was an otherwise unknown sage who could have been a student or teacher of wisdom at the time of Solomon. The words are identified as an oracle which was often used of the words of a prophet. The verses or proverbs we’ve selected compare the certainty of God’s revelation and the uncertainty of our speculation of what God’s words mean. Stating that every word of God is ‘tested’ is literally translated ‘tried’ in verse 5. The same teaching comes to us in Psalm 12:6 “The words of the Lord are pure words; As silver tried in a furnace on the earth, refined seven times.” Proverbs 30:6 delivers a powerful affirmation on the inspired nature of God’s canonical Word to Israel. To add to or subtract from God’s Word is to deny God as the standard of truth. The same instruction and warning are given in Deuteronomy 4:2; 12:32. It is a first and frequent practice of false teachers to modify the words of God. The Bible concludes with the warning again in Revelation 22:18-19 with a more dire warning.