Send thine hand from above - Margin, as in Hebrew, “hands.” See the notes at Psalms 18:16 : “He sent from above.”
Rid me, and deliver me out of great waters - Thus Psalms 18:16 : “He took me, he drew me out of many waters.” As God had done it once, there was ground for the prayer that he would do it yet again.
From the hand of strange children - Strangers: strangers to thee; strangers to thy people, foreigners. See Psalms 54:3 : “For strangers are risen up against me.” The language would properly imply that at the time referred to in the psalm he was engaged in a warfare with foreign enemies. Who they were, we have no means now of ascertaining.