Hebrews 2:11

2:11 For indeed he who makes holy and those being made holy all have the same origin, and so he is not ashamed to call them brothers and sisters,

Hebrews 3:1

Jesus and Moses

3:1 Therefore, holy brothers and sisters, partners in a heavenly calling, take note of Jesus, the apostle and high priest whom we confess,

Hebrews 13:22

13:22 Now I urge you, brothers and sisters, bear with my message of exhortation, for in fact I have written to you briefly.