When you read any post by me, I know that HaShem, Yeshua, and the Holy Spirit are all one. So feel free to place the title you think best in any place you find may not fit your thinking.
Yeshua, is and will always be in the Word. He can be found in every chapter, and verse. You are right alvation has been gained by our own hand, Even Abraham, was gifted salvation by his faith.
Amen, salvation has only ever been by grace through faith.
I believe that God intended to pull Israel into the same covenant given Abraham. The only reason this did not happen is because they did not continue in his covenant made with Abraham.
Thus God had to spell out His expectation to them so that they would see what Abraham had learned, not by works but by faith. But they did not respond by faith they said:
Exo 19:8 And all the people answered together, and said, All that the LORD hath spoken we will do.
They treated the covenant as a contract rather than a promise to be received from God.
They should have realised that God was inviting them into the covenant promise given to Abraham:
Gen 15:13 And he said unto Abram, Know of a surety that thy seed shall be a stranger in a land that is not theirs, and shall serve them; and they shall afflict them four hundred years;
Gen 15:14 And also that nation, whom they shall serve, will I judge: and afterward shall they come out with great substance.
And God showed that He had kept his promise to Abraham as it is written:
Exo 6:3 And I appeared unto Abraham, unto Isaac, and unto Jacob, by the name of God Almighty, but by my name JEHOVAH was I not known to them.
Exo 6:4 And I have also established my covenant with them, to give them the land of Canaan, the land of their pilgrimage, wherein they were strangers.
Exo 6:5 And I have also heard the groaning of the children of Israel, whom the Egyptians keep in bondage; and I have remembered my covenant.
and here:
Exo_2:24 And God heard their groaning, and God remembered his covenant with Abraham, with Isaac, and with Jacob.
And God says to Israel that they have seen the promise begin to be fulfilled:
Exo 19:4 Ye have seen what I did unto the Egyptians, and how I bare you on eagles' wings, and brought you unto myself.
Exo 19:5 Now therefore, if ye will obey my voice indeed, and keep my covenant, then ye shall be a peculiar treasure unto me above all people: for all the earth is mine:
The words "obey my voice" the word obey here actually means to listen with intent. the words "keep my covenant" the word keep holds the Idea of to cherish, the covenant/promise that He made with Abraham.
They thought they could do it so God humbled them with an understanding of the law that he gave them to show them what was in their hearts:
Deu 8:1 All the commandments which I command thee this day shall ye observe to do, that ye may live, and multiply, and go in and possess the land which the LORD sware unto your fathers.
Deu 8:2 And thou shalt remember all the way which the LORD thy God led thee these forty years in the wilderness, to humble thee, and to prove thee, to know what was in thine heart, whether thou wouldest keep his commandments, or no.
Deu 8:3 And he humbled thee, and suffered thee to hunger, and fed thee with manna, which thou knewest not, neither did thy fathers know; that he might make thee know that man doth not live by bread only, but by every word that proceedeth out of the mouth of the LORD doth man live.
The very lesson Abraham learned. But Israel was Like Abraham with Hagar trying to fulfil the promises of God. they had to learn the lesson of the promised child brought to be by the will and power of God. Promise child not worked for child.
If they had simply continued in the Covenant made with Abraham and trusted god as Abraham did they would have been made righteous by gods power. just As Abraham who did not have the law was transformed so that God could say of him:
Gen 26:5 Because that Abraham obeyed my voice, and kept my charge, my commandments, my statutes, and my laws.
Even Paul saw this when he speaks of Abraham in Romans. anyway that is the short version. You probably already know all this.
My point is simple, those who live by faith like Abraham are transformed and keep the law even if they don't have it. But Israel who tried to work at the law missed the righteousness that Abraham received because they did not do it by faith.