As soon as they hear of me; either,
1. At the fame of my name and victorious arms. Or,
2. At the first tidings of my coming towards them. Or rather,
3. As soon as they understand my will and pleasure, they shall instantly comply with it. Submit themselves unto me, Heb. shall lie unto me, i.e. shall submit themselves to me not willingly and cheerfullly, as they will pretend, but only out of fear, and by constraint; by which it appears that this is spoken with reference to David, and not (as some would have it) to Christ, because Christ's people are a willing people, Psalms 110:3, and those whom he conquers do freely obey him.