The resurrection is a core doctrine that reinforces our hope (assurance) for eternity with Christ every moment we live. Because He lives today, so shall all who believe His promise for all who call on the name of the Lord shall be saved (Romans 10:13). The Apostle believed that. I believe that. Countless others do as well! I pray you do, as well.
In our risen Lord, we who believe God have the promise of salvation from the penalty of sin, salvation from the power of sin in the present and salvation from the very presence of sin in the future when He finishes what He established the relationship of faith in us, and the journey home began. Consequently, the redeemed of God in Christ have something to celebrate every day in response to God giving us breath to function in fulfilling His purpose here on earth for in Him (Christ) we live and move and have our being (Acts 17:28).The Apostle Paul sums up the gospel that changes lives in the present and gives that soul hope for the future in 1 Corinthians 15:1-8. God says to all who are willing to hear, "Now I make known to you, brethren, the gospel which I preached to you, which also you received, in which also you stand, by which also you are saved, if you hold fast the word which I preached to you, unless you believed in vain. For I delivered to you as of first importance what I also received, that Christ died for our sins according to the Scriptures, and that He was buried, and that He was raised on the third day according to the Scriptures, and that He appeared (was seen) of Cephas (Peter), then of the twelve. After that He appeared to more than five hundred brethren at one time...then He (Christ) appeared to James, then to all the apostles; and last of all, as to one untimely born, He appeared to me (Paul)." A person seeing Jesus as the Lord of life depends on whether they have first met Him as a sinner that has acknowledged their personal need of salvation in Christ alone, as both Savior and Lord.
Many souls saw Jesus after His resurrection. That is established by the Word of God and the word of men alike. However, only those who have met Him personally will enjoy the promised provision of His presence. The rest will not see the benefit of the gospel simply because they were unwilling to receive it. That may well be the best illustration of a life wasted in the world.
Have you received the gospel of grace through faith? Have you met the Master who designed it and desires for you to experience it? Have you shared the same hope with others? If His seed of righteousness has germinated in the soil of your soul, the Holy Spirit that indwells you will cause it to bear fruit and multiply accordingly, after its kind. That is the evidence that you believe that Jesus lives today and on the earth again shall stand!
The gospel is/remains good news in a world filled with bad news. Let His light shine this week at work through sharing the hope God has provided for you in Christ. In so doing, God will accomplish His purpose in you in His continual pursuit of others!
Blessings in Christ, both now and forevermore,