Jared Wilson writes about the problem we ignore at Christmastime: if God is immutable, if he is the same yesterday, today, and tomorrow, then how did he not change when he was incarnated as a man? He says, “What Paul is getting at in Philippians 2:5-8 is not that Jesus did not ‘hold’ or ‘maintain’ the fullness of his divinity but that he did not exploit it or leverage it against his experiencing the fullness of humanity. He didn’t pull the parachute, in other words.”