11 For both he that sanctifieth and they who are sanctified are all of one: for which cause he is not ashamed to call them brethren,
English Standard Version
11 For he who sanctifies and those who are sanctified all have one source.Greek all are of one That is why he is not ashamed to call them brothers,Or brothers and sisters. The plural Greek word adelphoi (translated "brothers") refers to siblings in a family. In New Testament usage, depending on the context, adelphoi may refer either to men or to both men and women who are siblings (brothers and sisters) in God's family, the church; also verse 12
11 Since the One who saves and those who are saved have a common origin, Jesus doesn't hesitate to treat them as family,
New King James Version
11 For both He who sanctifies and those who are being sanctified are all of one, for which reason He is not ashamed to call them brethren,
New Living Translation
11 So now Jesus and the ones he makes holy have the same Father. That is why Jesus is not ashamed to call them his brothers and sisters.
Whatever the proud, carnal, and unbelieving may imagine or object, the spiritual mind will see peculiar glory in the cross of Christ, and be satisfied that it became Him, who in all things displays his own perfections in bringing many sons to glory, to make the Author of their salvation perfect through sufferings. His way to the crown was by the cross, and so must that of his people be. Christ sanctifies; he has purchased and sent the sanctifying Spirit: the Spirit sanctifies as the Spirit of Christ. True believers are sanctified, endowed with holy principles and powers, set apart to high and holy uses and purposes. Christ and believers are all of one heavenly Father, who is God. They are brought into relation with Christ. But the words, his not being ashamed to call them brethren, express the high superiority of Christ to the human nature. This is shown from three texts of Scripture. See Psalm 22:22; 18:2; Isaiah 8:18.