Then Jesus called the crowd and his disciples to him. "If any of you want to come with me," he told them, "you must forget yourself, carry your cross, and follow me. 1
References for Mark 8:34
8.34 Mt 10.38; Lk 14.27.
For if you want to save your own life, you will lose it; but if you lose your life for me and for the gospel, you will save it. 2
References for Mark 8:35
8.35 Mt 10.39; Lk 17.33; Jn 12.25.
Do you gain anything if you win the whole world but lose your life? Of course not!
There is nothing you can give to regain your life.
If you are ashamed of me and of my teaching in this godless and wicked day, then the Son of Man will be ashamed of you when he comes in the glory of his Father with the holy angels."