Jesus declared the following words recorded in John 16:32-33 during his discourse with his disciples before his crucifixion.
“Indeed the hour is coming, yes has now come, that you will be scattered, each to his own, and will leave Me alone. And yet I am not alone, because the Father is with Me. These things I have spoken to you that in Me you may have peace. In the world you will have tribulation: but be of good cheer, I have overcome the world.”
Jesus said be of good cheer, take heart be courageous, because I have overcome the world. The word “world” means cosmos in the Greek: the world, the universe. Jesus proclaimed his victory before he went to the cross. He told his disciples to take heart, be courageous. He was the one going to the cross, but He still told them to be of good cheer. Jesus knew who He was as a Son and submitted fully to the plan of the Father. He was trusting confidently that the Father would perform what He had promised.
In chapter 17 of the gospel of John, Jesus prays and begins his prayer with a profound statement of faith, even prophecy. Jesus said,
“Father, the hour has come. Glorify Your Son, that your Son also may glorify You.''
Jesus saw his VICTORY!! He knew he had already overcome because of what the Father had showed Him. He had to believe just like we do. He prayed in the Garden of Gethsemene in order to submit himself-not battle