God does not change. " I the Lord do not change" Mal 3:6. It is man who changes or thinks he/she does. God is eternal. Jesus Christ is the same today as He was yesterday and will be tomorrow-forever ~ Hebrews 13:8 And, in being so, "The eternal God is your refugee" ~ Deuteronomy 33:27. Therefore, "with Him that all things are possible" ~ Matthew 19:26. "For nothing is impossible with God"~ Luke 1:37. If you have a concordance in the back of your Bible, look up "God" and see the number of entries. There are more entries for "God" than any other. The Bible is His Word do not doubt it. God used men to be an instrument of His will which was to have His Word for all people. "Every word of God is flawless"~ Proverbs 30:5. His Word is flawless because He does not change. And, because, He does not change, we can have knowledge of Him. In this knowledge of Him, is our faith and eternal life.
In Hebrews 11, we read that faith is the substance of things hoped for. " Now faith is being sure of what we hope for and certain of what we do not see." Heb. 11:1. "By faith we understand that the universe was formed at God's' command so that what is seen was not made out of what was visible." Heb. 11:3
It was by faith that Abraham was able to offer his son Issac as a sacrifice- because of the faith of things hoped for - resurrection. Thus, it is not faith 'in' Jesus but our faith is the faith of things hoped for - Jesus Christ the Light of the World. Our faith is the substance of things hope for. There is no work in that.
Therefore, there is no work(s) that we can do toward salvation; God, Jesus Christ, did everything for us that we may enter the Kingdom of Heaven. "For no one comes to the Father except by me" ~ John 14:6. Even as 'believing in' is a work. That is dead work. We know of Him and we subdue all arguments against the knowledge of God 2 COR 10:5 and in this knowing of Him we are in Him and He is in us. In that being 'in/of' Him' we know that He is the Lord God Christ Jesus and that He is the Creator of Heaven and Earth of all things seen and unseen. Though we may be in this world, we are not of it ~ 2 COR 10:3. For, in/of Him we live, move and have our being ~ Acts 17:28.
Jesus is the same yesterday, today and tomorrow. So, don't be misled my dear brothers and sisters. Whatever is good and
perfect comes down to us from God our Father, who created all the lights
in the heavens. He never changes or casts a shifting shadow. He chose
to give birth to us by giving us his true word. And we, out of all
creation, became his prized possession" ~ James 1:16-18.