Hebrews 5:8

“Though he were a Son, etc..] The Son of God, as the Vulgate Latin version reads; not by creation, nor by adoption, nor by office, but by nature, being the only begotten of the Father, having the same nature and perfections with him: yet learned he obedience; not to his parents, or civil magistrates, though that is true; nor merely to the precepts of the law, which he did; but unto death: through sufferings he became obedient to death, even the death of the cross: and this he learnt; not that he was ignorant of the nature of it; nor was he destitute of an obedient disposition to it; but the meaning is, he had an experience of it, and effected it; and which was voluntary, and done in our room…”

“Though He WAS (so it ought to be translated: a positive admitted fact: not a mere supposition as were would imply) God's divine Son (whence, even in His agony, He so lovingly and often cried, Father, Mat 26:39), yet He learned His (so the Greek) obedience, not from His Sonship, but from His sufferings. As the Son, He was always obedient to the Father's will; but the special obedience needed to qualify Him as our High Priest, He learned experimentally in practical suffering. Compare Phi 2:6-8, "equal with God, but . . . took upon Him the form of a servant, and became obedient unto death," &c. He was obedient already before His passion, but He stooped to a still more humiliating and trying…”

“Though he were a Son - Though the Son of God. Though he sustained this exalted rank, and was conscious of it, yet he was willing to learn experimentally what is meant by obedience in the midst of sufferings. Yet learned he obedience - That is, he learned experimentally and practically. It cannot be supposed that he did not “know” what obedience was; or that he was “indisposed” to obey God before he suffered; or that he had, as we have, perversities of nature leading to rebellion which required to be subdued by suffering, but that he was willing to “test” the power of obedience in sufferings; to become personally and practically acquainted with the nature of such obedience in the midst of…”

“Though he were a Son - This is interposed. lest any should be offended at all these instances of human weakness. In the garden, how frequently did he call God his Father! Mat 26:39, &c. And hence it most evidently appears that his being the Son of God did not arise merely from his resurrection. Yet learned he - The word learned, premised to the word suffered, elegantly shows how willingly he learned. He learned obedience, when be began to suffer; when he applied himself to drink that cup: obedience in suffering and dying. Hebrews 5:9”

“5:8 he learned obedience from the things he suffered: Jesus was not disobedient before his suffering, but he walked his path of human experience—all the way to his death on the cross—in complete submission to the Father’s will. We are expected to travel the same path (12:1-11).”

“he were: Heb 1:5, Heb 1:8, Heb 3:6 yet: Heb 10:5-9; Isa 50:5, Isa 50:6; Mat 3:15; Joh 4:34, Joh 6:38, Joh 15:10; Phi 2:8 Hebrews 5:9”