Seizing the Mission of Jesus. As a believer, are you seizing the mission of Jesus? You might ask what the mission of Jesus is. So I'll start by explaining it with a writing exercise. Ok, get a piece of paper and a pen or your notepad app on your tablet or iPad. You got it yet? Ok, write down or type out everything you know about what a Missionary does. Take 5 minutes and then continue reading. Has 5 minutes elapsed yet? When we seize the mission of Jesus, we live out 1 Peter 2:9 which says,. Aug 20, 2014.