Read Romans 4–5
You see, at just the right time, when we were still powerless, Christ died for the ungodly─ God demonstrates his own love for us in this: While we were still sinners, Christ died for us. Romans 5:6, 8 NIV
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After giving the example of Abraham’s faith in waiting for God’s promise of a Savior, Paul tells the believers in Rome that Jesus came “at just the right time.” Certainly God’s time clock is different from ours. In the fullness of time, He sent His Son into the world to pay for the sins of all who would receive Him, for …where sin increased, grace increased all the more, so that, just as sin reigned in death, so also grace might reign through righteousness to bring eternal life through Jesus Christ our Lord. (5:20b-21)
Abraham died without seeing the promised Messiah, but he is with Him now as the recipient of eternal life. Abraham believed God, being fully persuaded that God had power to do what he had promised. This is why "it was credited to him as righteousness." The words "it was credited to him" were written not for him alone, but also for us, to whom God will credit righteousness–for us who believe in him who raised Jesus our Lord from the dead. (4:21-24)
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Dear Father, I cannot find the words to express the gratitude I have in my heart that you sent Jesus “at just the right time.” I not only have eternal life through the death of Your Son, I have an abundant life today through His life in me.
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For if, when we were God's enemies, we were reconciled to him through the death of his Son, how much more, having been reconciled, shall we be saved through his life! Romans 5:10 NIV