Whatever you do, work at it with all your heart, as working for the Lord, not for human masters, since you know that you will receive an inheritance from the Lord as a reward. It is the Lord Christ you are serving.
Colossians 3:23-24
...But as for me and my household, we will serve the Lord
Joshua 24:15
Never be lacking in zeal, but keep your spiritual fervor, serving the Lord
Romans 12:11