A.T. Robertson Commentary Hebrews 2:11

"For both he that sanctifieth and they that are sanctified are all of one: for which cause he is not ashamed to call them brethren," — Hebrews 2:11 (ASV)

He that sanctifieth (ο αγιαζων). Present active articular participle of αγιαζω. Jesus is the sanctifier (9:13f.; 13:12).

They that are sanctified (ο αγιαζομενο). Present passive articular participle of αγιαζω. It is a process here as in 10:14, not a single act, though in 10:10 the perfect passive indicative presents a completed state.

Of one (εξ ενος). Referring to God as the Father of Jesus and of the "many sons" above (verse 10) and in harmony with verse 14 below. Even before the incarnation Jesus had a kinship with men though we are not sons in the full sense that he is.

He is not ashamed (ουκ επαισχυνετα). Present passive indicative of επαισχυνομα, old compound (Romans 1:16). Because of the common Father Jesus is not ashamed to own us as "brothers" (αδελφους), unworthy sons though we be.