'Retain' in the Bible

Behold, one in the likeness of the sons of men touched my lips: then I opened my mouth, and spoke and said to him who stood before me, my lord, by reason of the vision my sorrows are turned on me, and I retain no strength.

At the end of years they shall join themselves together; and the daughter of the king of the south shall come to the king of the north to make an agreement: but she shall not retain the strength of her arm; neither shall he stand, nor his arm; but she shall be given up, and those who brought her, and he who became the father of her, and he who strengthened her in those times.