When the Lord Jesus Christ died on the cross, He cried out, "It is finished" (JN. 19:30). The work of our salvation was FINISHED, DONE, ACCOMPLISHED and COMPLETED. We simply need to trust and rest in what the Savior has accomplished.
Salvation is not working; it is RESTING on the WORK of Another, even the Lord Jesus Christ: "But to him that worketh not, but believeth on Him that justifieth the ungodly, his faith is counted for righteousness" (Rom. 4:5).
Religion is man trying to bring himself to God by human effort, by good works, by ritualism, by traditionalism, by sacraments, etc. Salvation is Christ bringing us to God on the basis of what He did for us on the cross: "For Christ also hath once suffered for sins, the Just for the unjust, that He might bring us to God" (1 Pet. 3:18).
God's holiness utterly condemns the best man ("As it is written, There is none righteous, no, not one"--Rom. 3:10), and God's grace freely justifies the worst ("For all have sinned, and come short of the glory of God; Being justified freely by His grace through the redemption that is in Christ Jesus"--Rom. 3:23-24).
The Gospel message brings to man, not A WORK TO DO, but A WORD TO BELIEVE about THE WORK HE HAS DONE: "But the Word of the Lord endureth for ever. And this is the Word which by the Gospel is preached unto you" (1 Pet. 1:25).
We are saved, not because of what we have done, but because of the MERCY OF GOD based upon what Christ has done on the cross: "Not by works of righteousness which we have done, but according to His mercy He saved us, by the washing of regeneration, and renewing of the Holy Ghost" (Titus 3:5).
A person can never be saved by his own good works: "For by GRACE are ye saved through faith; and that not of yourselves: IT IS THE GIFT OF GOD: NOT OF WORKS, lest any man should boast" (Eph. 2:8-9).
Good works done by sinful man can never please Holy God. The only genuinely good work is GOD'S WORK accomplished by Jesus Christ who offered Himself on the cross as the sinner's Substitute. Thus we are not saved by good works, but we are saved unto good works: "For we are his workmanship, created in Christ Jesus unto good works, which God hath before ordained that we should walk in them" (Eph. 2:10). "For it is God which worketh in you both to will and to do of his good pleasure" (Phil. 2:13).
Are you resting fully in the finished work of Christ? Are you trusting in Jesus Christ, WHO HE IS, WHAT HE HAS DONE FOR YOU and WHAT HE HAS SAID IN HIS WORD? "Look unto Me, and be ye saved, all the ends of the earth: for I am God, and there is none else" (Isa. 45:22).