'Skill' in the Bible

If I forget thee, Jerusalem, let my right hand forget its skill;

For there is a man whose labour hath been with wisdom, and with knowledge, and with skill, and who leaveth it to a man that hath not laboured therein, to be his portion. This also is vanity and a great evil.

As for these four youths, God gave them knowledge and skill in all learning and wisdom; and Daniel had understanding in all visions and dreams.