Arcana Coelestia # 10101
10101. 'And to fill their hand in them' means a representative sign of Divine Truth emanating from the Lord's Divine Good in the heavens. This is clear from the meaning of 'filling the hand' as consecration to represent Divine Truth emanating from the Lord's Divine Good, and the transmission and the reception of that Truth in the heavens, dealt with in 10019, at this point by those on the lowest levels there.
Exodus 15:6
6
Your right hand, Yahweh, is glorious in power. Your right hand, Yahweh, dashes the enemy in pieces.