Though addressing church elders initially, the message here applies to each of us. Humbling ourselves, casting our cares, subjecting ourselves to one another, being sober and diligent to resist the Devil, suffering willingly to the ends of perfection. Peter, I feel, is driving the point home that these worthy things are brought about by the constant feeding the flock and taking oversight.
Peter's motivation by now should be clear. It should be our motivation as well. Peter considers himself a witness of Christs suffering and a partaker in the glory to be revealed. Peter is this in the truest sense perhaps like no other having been there with Him. Thanks in great part to His testimony/obedience we are/can be this as well. The sufferings of Christ are so crucial to our proclamation because they point to the hands of those for whom He willingly suffered for. The glory to be revealed is equally crucial because it tells us that this was no ordinary man that suffered these things on our behalf, it was the very son of God, the promised one of Israel, the name above all names, Jesus Christ and Savior the King of all kings. Those that are thus inspired and motivated will be partakers of both the sufferings of and later the Glory of.
2012 - pBiblx2 Field Wise Bible System Version 2.0.9d - GPL3