John Calvin Commentary Philippians 2:8

"and being found in fashion as a man, he humbled himself, becoming obedient [even] unto death, yea, the death of the cross." — Philippians 2:8 (ASV)

He became obedient. Even this was great humility—that from being Lord he became a servant. But he says that he went further than this. For while he was not only immortal but the Lord of life and death, he nevertheless became obedient to his Father, even so far as to endure death.

This was extreme abasement, especially when we consider the kind of death, which he immediately adds to emphasize this. For by dying in this manner, he was not only covered with ignominy in the sight of God but was also accursed in the sight of God. It is certainly such a pattern of humility as ought to absorb the attention of all humankind, so far is it from being possible to express it in words in a manner suitable to its dignity.