'Serve' in the Bible

who serve that which is a copy and shadow of the heavenly things, even as Moses is warned of God when he is about to make the tabernacle: for, See, saith he, that thou make all things according to the pattern that was showed thee in the mount.

how much more shall the blood of Christ, who through the eternal Spirit offered himself without blemish unto God, cleanse your conscience from dead works to serve the living God?

We have an altar, whereof they have no right to eat that serve the tabernacle.