Mark 9:35

9:35 After he sat down, he called the twelve and said to them, “If anyone wants to be first, he must be last of all and servant of all.”

Mark 14:30

14:30 Jesus said to him, “I tell you the truth, ¹  today – this very night – before a rooster crows twice, you will deny me three times.”

[14:30]  ¹ tn Grk “Truly (ἀμήν, amhn), I say to you.”