'Lord's' in the Bible

Forwho has known the Lord’s mind,that he may instruct Him?But we have the mind of Christ.

For he who is called by the Lord as a slave is the Lord’s freedman. Likewise he who is called as a free man is Christ’s slave.

About virgins: I have no command from the Lord, but I do give an opinion as one who by the Lord’s mercy is trustworthy.

Don’t we have the right to be accompanied by a Christian wife like the other apostles, the Lord’s brothers, and Cephas?

You cannot drink the cup of the Lord and the cup of demons. You cannot share in the Lord’s table and the table of demons.

for the earth is the Lord’s, and all that is in it.

Therefore, when you come together, it is not really to eat the Lord’s Supper.

For as often as you eat this bread and drink the cup, you proclaim the Lord’s death until He comes.

If anyone thinks he is a prophet or spiritual, he should recognize that what I write to you is the Lord’s command.

Therefore, my dear brothers, be steadfast, immovable, always excelling in the Lord’s work, knowing that your labor in the Lord is not in vain.

If Timothy comes, see that he has nothing to fear from you, because he is doing the Lord’s work, just as I am.