anger of Yahweh burned

Here the "anger of Yahweh" is spoken of as if it were fire. (See: rc://en/ta/man/jit/figs-metaphor)

for his sin

It was a sin for Uzzah to touch the ark because Yahweh had commanded that no one should touch the ark. (See: rc://en/ta/man/jit/figs-explicit)