'Brethren' in the Bible

For both He who sanctifies and those who are sanctified are all from one Father; for which reason He is not ashamed to call them brethren,

saying,“I will proclaim Your name to My brethren,In the midst of the congregation I will sing Your praise.”

Therefore, He had to be made like His brethren in all things, so that He might become a merciful and faithful high priest in things pertaining to God, to make propitiation for the sins of the people.

Therefore, holy brethren, partakers of a heavenly calling, consider Jesus, the Apostle and High Priest of our confession;

Take care, brethren, that there not be in any one of you an evil, unbelieving heart that falls away from the living God.

And those indeed of the sons of Levi who receive the priest’s office have commandment in the Law to collect a tenth from the people, that is, from their brethren, although these are descended from Abraham.

Therefore, brethren, since we have confidence to enter the holy place by the blood of Jesus,

Let love of the brethren continue.

But I urge you, brethren, bear with this word of exhortation, for I have written to you briefly.