Mark 9:1

9:1 And he said to them, “I tell you the truth, there are some standing here who will not experience death before they see the kingdom of God come with power.”

Mark 10:29

10:29 Jesus said, “I tell you the truth, there is no one who has left home or brothers or sisters or mother or father or children or fields for my sake and for the sake of the gospel

Mark 12:43

12:43 He called his disciples and said to them, “I tell you the truth, this poor widow has put more into the offering box than all the others.

Mark 14:25

14:25 I tell you the truth, I will no longer drink of the fruit of the vine until that day when I drink it new in the kingdom of God.”