'Serve' in the Bible

Then said David, 'None are to carry the ark of God, except the Levites, for on them hath Jehovah fixed to carry the ark of God, and to serve Him -- unto the age.'

And the servants of Hadarezer see that they have been smitten before Israel, and they make peace with David and serve him, and Aram hath not been willing to help the sons of Ammon any more.

Sons of Amram: Aaron and Moses; and Aaron is separated for his sanctifying the holy of holies, he and his sons -- unto the age, to make perfume before Jehovah, to serve Him, and to bless in His name -- unto the age.

'And thou, Solomon, my son, know the God of thy father, and serve Him with a perfect heart, and with a willing mind, for all hearts is Jehovah seeking, and every imagination of the thoughts He is understanding; if thou dost seek Him, He is found of thee, and if thou dost forsake Him, He casteth thee off for ever.