In the following verse Peter, who lived under the law, says that his salvation was according to the grace of the Lord Jesus Christ:
"After much discussion, Peter got up and addressed them: “Brothers, you know that some time ago God made a choice among you that the Gentiles might hear from my lips the message of the gospel and believe. God, who knows the heart, showed that he accepted them by giving the Holy Spirit to them, just as he did to us. He did not discriminate between us and them, for he purified their hearts by faith. Now then, why do you try to test God by putting on the necks of Gentiles a yoke that neither we nor our ancestors have been able to bear? No! We believe it is through the grace of our Lord Jesus that we are saved, just as they are" (Acts 11:7-11).
Since Peter was saved by the grace of the Lord Jesus then it is impossible that "works" of one kind or another played any part in his salvation:
"For by grace are ye saved through faith; and that not of yourselves: it is the gift of God: Not of works, lest any man should boast" (Eph.2:8-9).
"Now to him that worketh is the reward not reckoned of grace, but of debt" (Ro.4:4).
Despite these facts those who call themselves Mid Acts Dispensationalists (MAD) on this forum say that even though Peter was saved by grace his salvation was not apart from works of one kind or another.
These people are so confused that they think that "grace" and "works" are compatible, and that proves that they do not even undertsnd the "gospel of grace," much less believe it.
We should pray to the LORD and ask Him to open their hearts so they they can actually believe the "gospel of grace," the gospel which saves.