³⁵ Make sure that the light you think you have is not actually darkness.

⁹ But those who fail to develop in this way are shortsighted or blind, forgetting that they have been cleansed from their old sins.

True Wisdom Comes from God

¹³ If you are wise and understand God’s ways, prove it by living an honorable life, doing good works with the humility that comes from wisdom. ¹⁴ But if you are bitterly jealous and there is selfish ambition in your heart, don’t cover up the truth with boasting and lying. ¹⁵ For jealousy and selfishness are not God’s kind of wisdom. Such things are earthly, unspiritual, and demonic. ¹⁶ For wherever there is jealousy and selfish ambition, there you will find disorder and evil of every kind.

¹⁷ But the wisdom from above is first of all pure. It is also peace loving, gentle at all times, and willing to yield to others. It is full of mercy and the fruit of good deeds. It shows no favoritism and is always sincere.

¹⁹ As the Scriptures say,

²⁰ So where does this leave the philosophers, the scholars, and the world’s brilliant debaters? God has made the wisdom of this world look foolish. ²¹ Since God in his wisdom saw to it that the world would never know him through human wisdom, he has used our foolish preaching to save those who believe.

¹⁸ Stop deceiving yourselves. If you think you are wise by this world’s standards, you need to become a fool to be truly wise. ¹⁹ For the wisdom of this world is foolishness to God. As the Scriptures say,

²⁰ And again,

²² Claiming to be wise, they instead became utter fools.

¹⁸ They brag about themselves with empty, foolish boasting. With an appeal to twisted sexual desires, they lure back into sin those who have barely escaped from a lifestyle of deception.

¹⁹ You are convinced that you are a guide for the blind and a light for people who are lost in darkness. ²⁰ You think you can instruct the ignorant and teach children the ways of God. For you are certain that God’s law gives you complete knowledge and truth.

²¹ Well then, if you teach others, why don’t you teach yourself? You tell others not to steal, but do you steal? ²² You say it is wrong to commit adultery, but do you commit adultery? You condemn idolatry, but do you use items stolen from pagan temples?^{[a] 23} You are so proud of knowing the law, but you dishonor God by breaking it.