'Brethren' in the Bible

Therefore, holy brethren, sharers with others in a heavenly invitation, fix your thoughts on Jesus, the Apostle and High Priest whose followers we profess to be.

see to it, brethren, that there is never in any one of you--as perhaps there may be--a sinful and unbelieving heart, manifesting itself in revolt from the ever-living God.

And those of the descendants of Levi who receive the priesthood are authorized by the Law to take tithes from the people, that is, from their brethren, though these have sprung from Abraham.

Since then, brethren, we have free access to the Holy place through the blood of Jesus,

Bear with me, brethren, when I thus exhort you; for, in fact, it is but a short letter that I have written to you.

Greet all your leaders and all God's people. The brethren from Italy send you greetings.