Thoughts on the following.

For the creation was subjected to futility, not willingly, but because of Him who subjected it in hope; / For we know that the law is spiritual, but I am carnal, sold under sin. / And before the coming of the faith, under law we were being kept, shut up to the faith about to be revealed, so that the law became our child-conductor -- to Christ, that by faith we may be declared righteous, and the faith having come, no more under a child-conductor are we, / He who sins is of the devil, for the devil has sinned from the beginning. For this purpose the Son of God was manifested, that He might destroy the works of the devil. / Inasmuch then as the children have partaken of flesh and blood, He Himself likewise shared in the same, that through death He might destroy him who had the power of death, that is, the devil, and release those who through fear of death were all their lifetime subject to bondage. / But when the fullness of the time had come, God sent forth His Son, born of a woman, born under the law, to redeem those who were under the law, that we might receive the adoption as sons. / “And she will bring forth a Son, and you shall call His name JESUS, for He will save His people from their sins.” /

Rom. 8:20 NKJV
Rom. 7:14 NKJV
Gal. 3:23-25 YLT
1 John 3:8 NKJV
Heb. 2:14,15 NKJV
Gal. 4:4,5 NKJV
Matt. 1:21 NKJV

Exactly what part do we play in all the above?