'Self controlled' in the Bible

Therefore, {when you have prepared your minds for action} [by] being self-controlled, put your hope completely in the grace that will be brought to you at the revelation of Jesus Christ.

For the culmination of all things is near. So be self-controlled and sober-minded for the sake of prayer.

Be sober and self-controlled. Be watchful. Your adversary, the devil, walks around like a roaring lion, seeking whom he may devour.