Heck, if Isaiah 12:2 didn't convince you, then you're hopeless. ;o)
Behold, God is my salvation;
I will trust, and will not be afraid;
for God YHWH is my strength and my song,
and He has become my salvation. (Isaiah 12:2)
How can God "become" something? Isn't He unchanging?
Unless, that is, He became salvation by becoming man.
SD