From a recent sermon by Toby Sumpter:

“Believe the Promise of God for your children and the world. We’ve reviewed them today. You’ve heard them before, but you are called to believe them. Your children belong to God. He has claimed them in baptism, and the promise of the Spirit is for them. But it’s striking that Peter connects the Promise of the Spirit to three distinct entities: you, your children, and the world. This is not accidental or coincidental. While leaving room for different gifts and different personalities, it is nevertheless the case that the Promise of the Spirit is for all three: you, your children, the world. This means that they are connected. And our faith in the promise of the Spirit cannot be disconnected from the mission of the Spirit. If the mission of the Spirit is to save you, your children, and this world, then reception of that Spirit, receiving that Promise in faith means believing with equal certainty in that mission. You cannot receive the Promise without receiving the Mission. And you cannot carry out the Mission without the Promise. It is the Spirit that is driving this story forward. It is the Spirit that is determined to conform you into the image of Christ. It is the Spirit that is determined to conform your children to that same image, and it is the Spirit that is determined to remake this whole world and conform every family on the face of this planet to the image of the Son. God’s mission in your life is to see this mission carried out in your children and in your neighbors and all who are afar off. That’s what the Promise of the Spirit is for; that’s what the Promise of the Spirit is up to. That is the Mission, and the Promise is for the carrying out of that Mission.”