Matthew 16:24-28

²⁴ Then Jesus told his disciples, “If anyone would come after me, let him deny himself and take up his cross and follow me. ²⁵ For whoever would save his life^[a] will lose it, but whoever loses his life for my sake will find it. ²⁶ For what will it profit a man if he gains the whole world and forfeits his soul? Or what shall a man give in return for his soul? ²⁷ For the Son of Man is going to come with his angels in the glory of his Father, and then he will repay each person according to what he has done. ²⁸ Truly, I say to you, there are some standing here who will not taste death until they see the Son of Man coming in his kingdom.”

1 Corinthians 15:58

⁵⁸ Therefore, my beloved brothers, be steadfast, immovable, always abounding in the work of the Lord, knowing that in the Lord your labor is not in vain.