"Nothing can block his blessings outpoured"

As part of the Heritage Choir's performance, we begin by reciting a collection of various poems. In it, there is one line that says "Nothing can block His blessings outpoured." For some reason I have had that stuck in my head lately just repeating over and over again. When I really think about it, it makes me realize just what a blessing it is to be used by God. The fact that even my weakness, sinful nature, and just lack of worthiness can't stop the blessings of God to be poured out gives me so much peace. There is nothing I can do to stop God's spreading of the gospel. There is nothing I can do that can thwart his mission. So here's the question: Why not be on the good side? If every single knee will bow someday and confess Jesus is Lord, and if all things work together for the glory of God, and if nothing can stand in the way of God's mission on earth, why would I ever stand on the other side, prolonging the inevitable?