If we could be saved by the works of the law, it is manifest we should have very good reason to boast. Everyone who went to heaven on the ground of his own works would be singing, Worthy am I and till he got there it would be clearly presumption on his part to say he was sure of being saved.
But it is not presumption for those who believe in Jesus to say they are saved. God says they are, and their salvation is due entirely to the grace of God through faith, and that, as Scripture says, excludes boasting. Yes, and more than that, God will have no discord in heaven. There will be no one there who will deserve to be there and so all the song shall be: "Unto Him that loved us, and washed us from our sins in His own blood, and hath made us kings and priests unto God and His Father; to Him be glory and dominion forever and ever. Amen." Rev. 1:5, 65And from Jesus Christ, who is the faithful witness, and the first begotten of the dead, and the prince of the kings of the earth. Unto him that loved us, and washed us from our sins in his own blood, 6And hath made us kings and priests unto God and his Father; to him be glory and dominion for ever and ever. Amen. (Revelation 1:5‑6).
It is not presumption then to say that He has washed me from my sins in His own blood. It is the very thing that shuts out presumption, that leads our hearts away from ourselves and our own doings to Jesus and what He has done, there to make our boast in Him and in His finished work.
“Forever be the glory given
To Thee, O Lamb of God!
Our every joy on earth, in heaven,
We owe it to Thy blood.”