You have assurance of everlasting life because Jesus rose from the dead.

“these are written that you may believe that Jesus is the Christ, the Son of God, and that believing you may have life in His name.” (Jn 20:30)

“These things I have written to you who believe in the name of the Son of God, that you may know that you have eternal life” (1Jn 5:13)

“And God both raised up the Lord and will also raise us up by His power.” (1Cor 6:14)

“knowing that He who raised up the Lord Jesus will also raise us up with Jesus, and will present us with you.” (2Cor 4:14)

“Jesus said to her, I am the resurrection and the life. He who believes in Me, though he may die, he shall live.” (Jn 11:25)

“who was delivered up because of our offenses, and was raised because of our justification.” (Rom 4:25)

“Therefore we were buried with Him through baptism into death, that just as Christ was raised from the dead by the glory of the Father, even so we also should walk in newness of life.” (Rom 6:4)

“Most assuredly, I say to you, he who hears My word and believes in Him who sent Me has everlasting life” (Jn 5:24)

“But if the Spirit of Him who raised Jesus from the dead dwells in you, He who raised Christ from the dead will also give life to your mortal bodies through His Spirit who dwells in you.” (Rom 8:11)

“And I will establish My covenant between Me and you and your descendants after you in their generations, for an everlasting covenant, to be God to you and your descendants after you.” (Gen 17:7)

“Then Abraham planted a tamarisk tree in Beersheba, and there called on the name of the LORD, the Everlasting God.” (Gen 21:33)

“Incline your ear, and come to Me. Hear, and your soul shall live; and I will make an everlasting covenant with you – the sure mercies of David.” (Isa 55:3)

“You, O LORD, are our Father; our Redeemer from Everlasting is Your name.” (Isa 63:16)

“But the LORD is the true God; He is the living God and the everlasting King.” (Jer 10:10)

“The LORD has appeared of old to me, saying: Yes, I have loved you with an everlasting love; therefore with lovingkindness I have drawn you.” (Jer 31:3)

“Moreover I will make a covenant of peace with them, and it shall be an everlasting covenant with them” (Ezek 37:26)

“I blessed the Most High and praised and honored Him who lives forever: for His dominion is an everlasting dominion,

And His kingdom is from generation to generation.” (Dan 4:34)

“For God so loved the world that He gave His only begotten Son, that whoever believes in Him should not perish but have everlasting life.” (Jn 3:16)

“He who believes in the Son has everlasting life” (Jn 3:36)

“Most assuredly, I say to you, he who hears My word and believes in Him who sent Me has everlasting life” (Jn 5:24)

“And this is the will of Him who sent Me, that everyone who sees the Son and believes in Him may have everlasting life; and I will raise him up at the last day.” (Jn 6:40)

“Now may our Lord Jesus Christ Himself, and our God and Father, who has loved us and given us everlasting consolation and good hope by grace” (2Thes 2:16)

“Now may the God of peace who brought up our Lord Jesus from the dead, that great Shepherd of the sheep, through the blood of the everlasting covenant” (Heb 13:20)

“and raised us up together, and made us sit together in the heavenly places in Christ Jesus” (Eph 2:6)

Reading: 2Chr 11-13; Jn 20