Jamieson, Fausset and Brown on Philippians 2:8

8. being found in fashion as a man--being already, by His "emptying Himself," in the form of a servant, or likeness of man (Ro 8:3), "He humbled Himself (still further by) becoming obedient even unto death (not as English Version, 'He humbled Himself and became,'&c.; the Greek has no 'and,' and has the participle, not the verb), and that the death of the cross." "Fashion" expresses that He had the outward guise, speech, and look. In Php 2:7, in the Greek, the emphasis is on Himself (which stands before the Greek verb), "He emptied Himself," His divine self, viewed in respect to what He had heretofore been; in Php 2:8 the emphasis is on "humbled" (which stands before the Greek "Himself"); He not only "emptied Himself" of His previous "form of God," but submitted to positive HUMILIATION. He "became obedient," namely, to God, as His "servant" (Ro 5:19; He 5:8). Therefore "God" is said to "exalt" Him (Php 2:9), even as it was God to whom He became voluntarily "obedient." "Even unto death" expresses the climax of His obedience (Joh 10:18).