Romans 4:13-15

For the promise to Abraham or to his descendants that he would inherit the world was not fulfilled through the law, but through the righteousness that comes by faith.  For if they become heirs by the law, faith is empty and the promise is nullified.  For the law brings wrath, because where there is no law there is no transgression either.

Obedience to the law cannot save us. The rich young ruler, boasting obedience to the commandments, was not following Christ. His faith was in something else…His all was in something else. Perhaps it was the wealth itself, or maybe it was the worth He gleaned from the wealth. A faith transformation had yet to occur in his heart. Abraham was blessed by a miraculous son, Isaac, in his very old age just as God promised him. While Isaac was still a boy, God tells Abraham that he must sacrifice his promised son. Isaac, recognizing what is happening, asks his father where the lamb is for the sacrifice. Abraham responds, “God himself will provide the lamb for the burnt offering, my son.” (Genesis 22:8) We become heirs through the “righteousness that comes by faith”. Seek Him and grow to delight in Him, first and foremost in your life.