18 Do not deceive yourselves. If any of you think you are wise by the standards of this age, you should become “fools” so that you may become wise.

Read 1 Corinthians 3:18 Using Other Translations

Let no man deceive himself. If any man among you seemeth to be wise in this world, let him become a fool, that he may be wise.
Let no one deceive himself. If anyone among you thinks that he is wise in this age, let him become a fool that he may become wise.
Stop deceiving yourselves. If you think you are wise by this world’s standards, you need to become a fool to be truly wise.