From him - From it, from this Egypt, which though fem. as a land, yet as a people may be used as a masc. (compare Jeremiah 46:8). Now that Nineveh is trembling before the armies of Cyaxares and Nabopalassar, thou hastenest to Egypt, hoping to rest upon her strength: but thou shalt retrace thy steps, with thy hands clasped upon thy head, disgraced and discarded.
Confidences - Those in whom thou confidest.
In them - literally, “with respect to them.”