Hebrews 2:17

“Wherefore in all things it behoved him to be made like unto his brethren, etc..] The adopted sons of God, who were brethren before Christ's incarnation, being from all eternity predestinated to the adoption of children: Christ's incarnation was in time, and after that many of the brethren existed; and it was only for their sakes that he assumed human nature; and therefore it was proper he should be like them in that nature, in all things: in all the essentials of it; it was not necessary that he should have it by natural generation; nor that it should have a subsistence in itself as theirs: and in all the properties and affections of it, that are, not sinful; for it did not behove him to be…”

“Wherefore--Greek, "Whence." Found in Paul's speech, Act 26:19. in all things--which are incidental to manhood, the being born, nourished, growing up, suffering. Sin is not, in the original constitution of man, a necessary attendant of manhood, so He had no sin. it behooved him--by moral necessity, considering what the justice and love of God required of Him as Mediator (compare Heb 5:3), the office which He had voluntarily undertaken in order to "help" man (Heb 2:16). his brethren-- (Heb 2:11); "the seed of Abraham" (Heb 2:16), and so also the spiritual seed, His elect out of all mankind. be, &c.--rather as Greek, "that He might become High Priest"; He was called so, when He was "made…”

“Wherefore in all things - In respect to his body; his soul; his rank and character. There was a propriety that he should be like them, and should partake of their nature. The meaning is, that there was a fitness that nothing should be wanting in him in reference to the innocent propensities and sympathies of human nature. It behoved him - It became him; or there was a fitness and propriety in it. The reason why it was proper, the apostle proceeds to state. Like unto his brethren - Like unto those who sustained to him the relation of brethren; particularly as he undertook to redeem the descendants of Abraham, and as he was a descendant of Abraham himself, there was a propriety that he should…”

“Wherefore it behoved him - It was highly fit and proper, yea, necessary, in order to his design of redeeming them. To be made in all things - That essentially pertain to human nature, and in all sufferings and temptations. Like his brethren - This is a recapitulation of all that goes before: the sum of all that follows is added immediately. That he might be a merciful and faithful High Priest - Merciful toward sinners; faithful toward God. A priest or high priest is one who has a right of approaching God, and of bringing others to him. Faithful is treated of, Heb 3:2, &c., with its use; merciful, Heb 4:14, &c., with the use also; High Priest, Heb 5:4, &c., Heb 7:1, &c. The use is added from…”

“2:17-18 These verses introduce Jesus’ role as our merciful and faithful High Priest, which is fully discussed in the central section of Hebrews (4:14–10:25). • It was necessary for him to share our humanity (see 5:1).”

“it: Heb 2:11, Heb 2:14; Phi 2:7, Phi 2:8 a merciful: Heb 3:2, Heb 3:5, Heb 4:15, Heb 4:16, Heb 5:1, Heb 5:2; Isa 11:5 to make: Lev 6:30, Lev 8:15; Ch2 29:24; Eze 45:15, Eze 45:17, Eze 45:20; Dan 9:24; Rom 5:10; Co2 5:18-21; Eph 2:16; Col 1:21 Hebrews 2:18”