Cross reference
Romans 16:14
14 salute Asyncritus, Phlegon, Hermas, Patrobas, Hermes, and the brethren with them;
Romans 8:29
29 because whom He did foreknow, He also did fore-appoint, conformed to the image of His Son, that he might be first-born among many brethren;
Colossians 1:2
2 to the saints in Colossae, and to the faithful brethren in Christ: Grace to you, and peace from God our Father, and the Lord Jesus Christ!
Hebrews 3:1
1 Wherefore, holy brethren, partakers of a heavenly calling, consider the apostle and chief priest of our profession, Christ Jesus,
1 Peter 1:22-23
22 Your souls having purified in the obedience of the truth through the Spirit to brotherly love unfeigned, out of a pure heart one another love ye earnestly,
23 being begotten again, not out of seed corruptible, but incorruptible, through a word of God -- living and remaining -- to the age;