Bible Verses About Watchfulness: Christ an example of

Then he saith to them: My soul is sorrowful even unto death. Stay you here and watch with me.

And he cometh to his disciples and findeth them asleep. And he saith to Peter: What? Could you not watch one hour with me?

And it came to pass in those days, that he went out into a mountain to pray: and he passed the whole night in the prayer of God.