'Studies' in the Bible

But his delight is in the law of the Lord,And on His law [His precepts and teachings] he [habitually] meditates day and night.

The heart of the righteous thinks carefully about how to answer [in a wise and appropriate and timely way],But the [babbling] mouth of the wicked pours out malevolent things.

and studies himself carefully, and then goes off and immediately forgets what he looks like.