Is there a difference between fearing God in the Old Testament and a God of love in the New Testament? Although it’s the same God in both, one who doesn’t change, the difference is Jesus. Jesus alters the way we understand and perceive God.
True, God is to be feared and God is love. This is a spiritual paradox we need to accept.
In the Old Testament, the focus is on the law (rules) and the result is fear because we fall short. In the New Testament, Jesus fulfills the law (overcomes or replaces rules) with love. The result is that love trumps fear.
This doesn’t mean we should completely disregard a healthy fear of God, but instead to temper our fear with his love.