Since you have chosen to posit a quirky and unreasonable definition of “God’s commandments”, I will assume until you correct me that you believe (a), You (not the thief on the cross, not a deathbed convert, but you) can enter heaven without obeying God’s commandments (reasonably defined) in the least, but only by believing in Christ.
Actually it’s your questioning that’s totally unreasonable. You’re trying to falsely conclude (and accuse) that those who teach salvation by grace through faith in Christ alone (like Paul, Peter and John, even Christ) say obedience to God has no part in the daily life of the saved. But neither I nor Christ, nor Paul, nor Peter, nor John teach such nonsense. It is the saved by grace
through faith that are regenerated by the Holy Spirit and whose desire it is (being now “
in Christ”) to be pleasing to God.
2 Cor. 4:18 - 5:9 "…while we look not at the things which are seen, but at the things which are not seen; for the things which are seen are temporal, but the things which are not seen are eternal.
For we know that if the earthly tent which is our house is torn down,
we have a building from God, a house not made with hands,
eternal in the heavens. For indeed while we are in this tent, we groan, being burdened, because we do not want to be unclothed but to be clothed, so that what is mortal will be swallowed up by life.
Now He who prepared us for this very purpose is God,
who gave to us the Spirit as a pledge. Therefore, being always of good courage, and
knowing that while we are at home in the body we are absent from the Lord – for we walk by faith, not by sight – we are of good courage, I say, and prefer rather to be absent from the body and to be at home with the Lord.
Therefore we also have as our ambition, whether at home or absent,
to be pleasing to Him.The truly saved have as their
ambition to be pleasing to the Lord. Is this done perfectly at all times? Of course not! Nor does our salvation hinge on such perfection but it was
gifted to us by God through our
faith in the perfect, sacrificial work of His unblemished Lamb (Jn. 3:14-18), through which we “have been justified,”
giftwise, in His sight:
Rom. 3:24 "…being justified as a gift by His grace
through the redemption which is in Christ Jesus; (cf. Rom. 5:1-2)It is because of my divinely revealed
indentification in Christ, not
condemnation through disobeyed commandments, that motivates me to be pleasing to God. I am not under law but under grace. This is what “
faith working through love” means.