'Retained' in the Bible

So I was left alone and saw this great vision; yet no strength was left in me, for my natural color turned to a deathly pallor, and I retained no strength.

And behold, one who resembled a human being was touching my lips; then I opened my mouth and spoke and said to him who was standing before me, “O my lord, as a result of the vision anguish has come upon me, and I have retained no strength.