Philemon 1:16

no longer as a slave, but more than a slave, a beloved brother, especially to me, but how much more to you, both in the flesh and in the Lord.

Treasury of Scripture Knowledge

Summary

Not now as a servant, but above a servant, a brother beloved, specially to me, but how much more unto thee, both in the flesh, and in the Lord?

Bible References

A brother

Matthew 23:8
But you are not to be called 'Rabbi,' because one is your teacher, and you are all brothers,
Acts 9:17
So Ananias departed and entered into the house, and placing [his] hands on him, he said, "Brother Saul, the Lord Jesus, who appeared to you on the road by which you came, has sent me so that you may regain [your] sight and be filled with the Holy Spirit."
Galatians 4:28
But you, brothers, are children of the promise, just as Isaac.
1 Timothy 6:2
And those who have believing masters must not look down on [them] because they are brothers, but rather they must serve, because those who benefit by their service are believers and dearly loved.
Hebrews 3:1
Therefore, holy brothers, sharers in a heavenly calling, consider Jesus, the apostle and high priest of our confession,
1 Peter 1:22
Having purified your souls by your obedience to the truth for sincere brotherly love, love one another fervently from the heart,
1 John 5:1
Everyone who believes that Jesus is the Christ has been fathered by God, and everyone who loves {the father} also loves the [child] fathered by him.

Both in

Ephesians 6:5
Slaves, obey your earthly masters with fear and trembling, in the sincerity of your heart, as to Christ,
Colossians 3:22
Slaves, obey your {human} masters in everything, not {while being watched}, as people pleasers, but with sincerity of heart, fearing the Lord.