when. . . came, &c.= having approached Him and said.
the tempter= he who was tempting Him. See App-116.
came to Him : as to our first parents, Adam and Eve, App-119.
he said. See App-116 for the two sets of three temptations, under different circumstances, with different words and expressions; and, in a different order in Matthew 4 from that in Luke 4. It is nowhere said that there were "three" or only three; as it is nowhere said that there were "three" wise men in Matthew 2.
If. Greek ei, with the indicative mood, assuming and taking it for granted as an actual fact.
" If Thou art ? "App-118. Same as in Mat_4:6, but not the same as in Mat_4:9.
the Son of God. Compare this with Mat_3:17, on which the question is based. See App-98.
command that = speak, in order that.
these stones: in this the fourth temptation; but in the first temptation = "this stone" (Luk_4:3).