'Serve' in the Bible

To serve Him, in holiness and righteousness Before Him, all the days of our life.

And Jesus answering him said, 'Get thee behind me, Adversary, for it hath been written, Thou shalt bow before the Lord thy God, and Him only thou shalt serve.'

and Martha was distracted about much serving, and having stood by him, she said, 'Sir, dost thou not care that my sister left me alone to serve? say then to her, that she may partake along with me.'

and he answering said to the father, Lo, so many years I do serve thee, and never thy command did I transgress, and to me thou didst never give a kid, that with my friends I might make merry;

'No domestic is able to serve two lords, for either the one he will hate, and the other he will love; or one he will hold to, and of the other he will be heedless; ye are not able to serve God and mammon.'