25 It is you who are the sons of the prophets and of the covenant which God made with your fathers, saying to Abraham, ‘ And in your seed all the families of the earth shall be blessed. ’ 26 For you first, God raised up His Servant and sent Him to bless you by turning every one of you from your wicked ways
(Acts 3:25-26 NASB)
Peter here reminds the people of the covenant promise that God made to Abraham, a promise that came before the old covenant and is therefore not bound by the old covenant but instead is part of the foundation for both the old and new covenants. This covenant is about heritage, inheritance, legacy.
First God saves us through Jesus Christ. This means that we leave behind and turn away from all that was wrong in our lives and choose to follow Christ instead. This is repentance, and we can repent because of the grace poured out on us. But this is just step one.
We have to live out out a lifestyle that shows inwardly and outwardly that our lives have in fact been changed, that we are in fact now children of the Kingdom of God, as demonstrated in Luke 10.
True Kingdom transformation has to start in each of us first. This means that we have something to give, something to impart. Who do we start imparting to, blessing? The people closest to us, our families. We then also bless our friends, neighbours, workmates, and other people in our sphere of influence.
We need to do this not just because that’s God’s will for us, but because we care about our families, and all those around us, don’t we? Don’t we want to help them find their Saviour, and find the powerful lives they were created to live?
Legacy. This is the mark of the true Christian. What he or she leaves behind. Is it a reputation for being charitable? Or, is it a reputation for leading people into the Kingdom of God, people who themselves go onto leading others to the Kingdom of God. Our legacy should snowball. It should grow. It should increase throughout the generations, not just biological generations, but spiritual generations also, so that ultimately all those alive on this planet will be blessed.
I can do all things through Him who strengthens me.
(Philippians 4:13 NASB)
All things means all things, so yes, it is definitely possible to bless, and keep blessing, for our seed to bless and keep blessing, until the whole world has been blessed.
God saved each of us to create a legacy that blesses the world around us, and gives glory to Him.