'Minister' in the Bible

and having sat down he called the twelve, and he saith to them, 'If any doth will to be first, he shall be last of all, and minister of all.'

but not so shall it be among you; but whoever may will to become great among you, he shall be your minister,

for even the Son of Man came not to be ministered to, but to minister, and to give his life a ransom for many.'