So Paul is refering in to both condign and congruous?
Well, if salvation is not of condign works, then it perverts justice, because condign works are an obligation for justice, so you would have to do them first in order to be justified, or else you would be justified without justice, which is impossible with the God of Israel.
So, if not condign works, then it would have to be interpreted as: "not of
congruous works" because these are
not mandatory for justice, which eliminates your OT Law interpretation, because the
OT Law is not congruous, but it is condign and
absolutely required for salvation and justice.
Believe it or not, Paul is teaching faith alone without works in general, neither condign nor congruous, so no man can boast.
So, according to you, God gave a Law that is impossible to keep, and everyone who does not keep the "impossible to keep Law" is to be killed. Do you not see the err?
King Davi proving you wrong by keeping the Law perfectly:
Psalm 18:21 For
I have kept the ways of the Lord, and have not wickedly departed from my God.
22 For
all his judgments were before me, and I did not put away his statutes from me.
23
I was also upright before him, and
I kept myself from mine iniquity.
Psalm 119:1
Blessed are the undefiled in the way,
who walk in the law of the Lord.
2 Blessed are they
that keep his testimonies, and that seek him with the whole heart.
3
They also do no iniquity: they walk in his ways.
11
Thy word have I hid in mine heart, that
I might not sin against thee.
22 Remove from me reproach and contempt; for
I have kept thy testimonies.
55 I have remembered thy name, O Lord, in the night, and
have kept thy law.
56 This I had, because
I kept thy precepts.
63 I am a companion of all them that fear thee, and of
them that keep thy precepts.
66 Teach me good judgment and knowledge: for
I have believed thy commandments.
67 Before I was afflicted I went astray:
but now have I kept thy word.
100 I understand more than the ancients, because I keep thy precepts.
166 Lord, I have hoped for thy salvation, and
done thy commandments.
168
I have kept thy precepts and thy testimonies: for all my ways are before thee.
173 Let thine hand help me; for
I have chosen thy precepts.
So the reward of the wicked is merited but the reward of the righteous is not merited. Are you saying the ways of the LORD are not equal? Are not the ways of the wicked and the righteous unequal?
Ezekiel 18:25 Yet ye say, The way of the Lord is not equal. Hear now, O house of Israel;
Is not my way equal? are not your ways unequal?
29 Yet saith the house of Israel, The way of the Lord is not equal. O house of Israel,
are not my ways equal? are not your ways unequal?
Ezekiel 33:17 Yet the children of thy people say, The way of the Lord is not equal: but as for them, their way is not equal.
"Free gift" ?
Exodus 23:8 And
thou shalt take no gift: for the gift blindeth the wise, and perverteth the words of the righteous.
Proverbs 15:27 He that is greedy of gain troubleth his own house; but
he that hateth gifts shall live.
Proverbs 17:23 A wicked man taketh a gift out of the bosom to pervert the ways of judgment.
Isaiah 1:23 Thy princes are rebellious, and companions of thieves: every one loveth gifts, and followeth after
rewards: they judge not the fatherless, neither doth the cause of the widow come unto them.
Isaiah 5:22 Woe unto them that are mighty to drink wine, and men of strength to mingle strong drink:
23 Which
justify the wicked for reward, and take away the righteousness of the righteous from him!