What does Proverbs 22:18 mean?

All "proverbs" are general statements of wisdom. These are not absolute guarantees, but they do present the most likely scenario. A person who takes good advice (Proverbs 12:15) and applies it (Proverbs 1:33) is much more likely to experience success and safety (Proverbs 8:34–36). Following godly wisdom (Proverbs 1:7) is the most reliable way to avoid disaster (Proverbs 10:16).

Solomon's suggested approach to these teachings is that the reader "keep them within," meaning to memorize them. The psalmist writes in Psalm 119:11: "I have stored up your word in my heart, that I might not sin against you." In verse 97 he writes: "Oh how I love your law! It is my meditation all the day." In verse 103 he exclaims, "How sweet are your words to my taste, sweeter than honey to my mouth!"

Merely remembering promising ideas is not enough, however. Solomon adds that these teachings should also be "ready on your lips." It is important to know how to apply Scripture in every situation. Scripture was ready on Jesus' lips when He turned aside temptation in the wilderness. He answered each test with a quotation from Scripture (Matthew 4:4, 7, 10). The apostle Paul underscores the key role God's Word plays in the Christian's battles with Satan. He writes: "And take…the sword of the Spirit, which is the word of God" (Ephesians 6:17).