Charles Ellicott Commentary Romans 4:23

"Now it was not written for his sake alone, that it was reckoned unto him;" — Romans 4:23 (ASV)

Application of the preceding. The history of Abraham is a type of the dispensation of grace; his faith, the imputation of righteousness to him, and his reward are each individually a type of the same things in the Christian.

Even in details the resemblance holds. Abraham put faith in a God who quickeneth the dead, and similarly, the Christian must put faith in God as the Author of a plan of salvation attested by the resurrection of Christ.

The death of Christ was the ground of that plan, the resurrection of Christ its proof, without which it would not have been made real to humanity.