Who hath measured the waters in the hollow of his hand? i.e. who can measure them? for indicative verbs in the Hebrew language are oft taken potentially. Who can do this and the following things but God! And this discourse of God's infinite power and wisdom is here conveniently added, to give them the greater assurance that God was able, as he had declared himself willing, to do these great and wonderful things which he had promised; and that neither men nor false gods were able to hinder him in it. God is here compared to a mighty giant, supposed to be so big that he can take up and hold all the waters of the sea and rivers of the whole world in one hand, and span the heavens, and then take up and weigh the whole earth with the other hand.
Related Commentaries of Isaiah 40:12
Isaiah 40:12
12 Who hath measured the waters in the hollow of his hand, and meted out heaven with the span, and comprehended the dust of the earth in a measure,e and weighed the mountains in scales, and the hills in a balance?