Abraham was saved BEFORE he obeyed him.
Abraham also sinned many grave sins after he was saved.
If you say we are saved by grace plus works. you are in error..
-“Do you see that faith was working together with his works, and by works faith was made perfect?
-You see then that a man is justified by works, and not by faith only.
-For as the body without the spirit is dead, so faith without works is dead also.”
James 2:22, 24, 26 NKJV