Complex sentence: Finally, he argues that God's choice is not unconditional; recalling the numerous times God threatened with the complete destruction of the Hebrew nation he asserts that this choice is neither absolute, nor eternal, nor necessary.
Split into simpler sentences: Finally, he argues that God's choice is not unconditional. Recalling the numerous times God threatened the complete destruction of the Hebrew nation, he asserts that this choice is neither absolute, nor eternal, nor necessary.