'Faithfulness' in the Bible

"Woe to you, experts in the law and you Pharisees, hypocrites! You give a tenth of mint, dill, and cumin, yet you neglect what is more important in the law -- justice, mercy, and faithfulness! You should have done these things without neglecting the others.

What then? If some did not believe, does their unbelief nullify the faithfulness of God?

namely, the righteousness of God through the faithfulness of Jesus Christ for all who believe. For there is no distinction,

This was also to demonstrate his righteousness in the present time, so that he would be just and the justifier of the one who lives because of Jesus' faithfulness.

yet we know that no one is justified by the works of the law but by the faithfulness of Jesus Christ. And we have come to believe in Christ Jesus, so that we may be justified by the faithfulness of Christ and not by the works of the law, because by the works of the law no one will be justified.

I have been crucified with Christ, and it is no longer I who live, but Christ lives in me. So the life I now live in the body, I live because of the faithfulness of the Son of God, who loved me and gave himself for me.

But the scripture imprisoned everything and everyone under sin so that the promise could be given -- because of the faithfulness of Jesus Christ -- to those who believe.

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

in whom we have boldness and confident access to God because of Christ's faithfulness.

and be found in him, not because I have my own righteousness derived from the law, but because I have the righteousness that comes by way of Christ's faithfulness -- a righteousness from God that is in fact based on Christ's faithfulness.

Let no one look down on you because you are young, but set an example for the believers in your speech, conduct, love, faithfulness, and purity.

But you, as a person dedicated to God, keep away from all that. Instead pursue righteousness, godliness, faithfulness, love, endurance, and gentleness.

But keep away from youthful passions, and pursue righteousness, faithfulness, love, and peace, in company with others who call on the Lord from a pure heart.

Dear friend, you demonstrate faithfulness by whatever you do for the brothers (even though they are strangers).