'Faithfulness' in the Bible

"Woe to you, scribes and Pharisees--hypocrites!--because you pay a tenth of mint and dill and cumin, and neglect the more important [matters] of the law--justice and mercy and faithfulness! It was necessary to do these [things] {while not neglecting those}.

{What is the result} if some refused to believe? Their unbelief will not nullify the faithfulness of God, [will it]?

But the fruit of the Spirit is love, joy, peace, patience, kindness, goodness, faithfulness,