'Yourself' in the Bible

Rouse yourself and keep awake, and strengthen those things which remain but have well-nigh perished; for I have found no doings of yours free from imperfection in the sight of My God.

Be mindful, therefore, of the lessons you have received and heard. Continually lay them to heart, and repent. If, however, you fail to rouse yourself and keep awake, I shall come upon you suddenly like a thief, and you will certainly not know the hour at which I shall come to judge you.