Difference Between the Two

The difference is just the difference between a freewoman and a slave. Hagar’s children, no matter how many she might have had, would have been slaves, while those of Sarah would necessarily be free.GTI 187.2

So the covenant from Sinai holds all who adhere to it in bondage “under the law;” while the covenant from above gives freedom, not freedom from obedience to the law, but freedom from disobedience to it. The freedom is not found away from the law, but in the law. Christ redeems from the curse, which is the transgression of the law. He redeems us from the curse, that the blessing may come on us; and the blessing is obedience to the law. “Blessed are the undefiled in the way, who walk in the law of the Lord.” Psalm 119:1. This blessedness is freedom. “I will walk at liberty; for I seek Thy precepts.” Psalm 119:45.GTI 188.1

The difference between the two covenants may be put briefly thus: In the covenant from Sinai we ourselves have to do with the law alone, while in the covenant from above, we have the law in Christ. In the first instance it is death to us, since the law is sharper than any two-edged sword, and we are not able to handle it without fatal results; but in the second instance we have the law “in the hand of a Mediator.” In the one case it is what we can do; in the other case it is what the Spirit of God can do. Bear in mind that there is not the slightest question in the whole Epistle to the Galatians as to whether or not the law should be kept. The only question is, How shall it be done? Is it to be our own doing, so that the reward shall not be of grace but of debt? or is it to be God working in us both to will and to do of His good pleasure?GTI 188.2