“For there is one God, and one Mediator between God and men, the Man Christ Jesus; who gave Himself a ransom for all, to be testified in due time” (I Tim. 2:5,6).
Man, in his present condition is not fit to stand in the presence of a holy God. If we are honest with ourselves we will feel the need of a mediator — a go-between — who can represent us in the presence of God. Job felt this when, realizing this need, he cried:
“There is no daysman who can lay his hand upon us both” (Job 9:33).
Thank God, a “daysman” or “mediator” has been provided for sinful men — a go-between, who can act as an intermediary between sinful men and a holy God. This Mediator is Christ, Son of God and Son of man.
What a blessing to know that the Son of God became the Son of man that the sons of men might become the sons of God! Though perfect and sinless, He died upon Calvary’s cross so that His payment for sin might be credited to our account and we might stand before God without one sin to our charge.
Though Christ’s death for sin was credited to all believers, even of past ages, it was not proclaimed until sometime after the cross, when God in grace saved Saul of Tarsus, the chief of sinners (I Tim. 1:15). This is why the Apostle declares that Christ “gave Himself a ransom for all, to be testified in due time.”
It was when Saul, the chief of sinners, was saved on the road to Damascus, that God began to show to him that Christ had died as “a ransom for all,” and God sent him forth to proclaim this glorious message.
This is why Paul’s epistles are so filled with references to salvation through the cross, the death, the blood of Christ. And it is on this basis that the Apostle offers to all salvation by grace, through faith in the finished work of Christ, and proclaims to all the simple offer of salvation: “Believe on the Lord Jesus Christ, and thou shalt be saved” (Acts 16:31). source