When a plan comes together...

God has a plan. He's had a plan right from the beginning, but I also have to assume our human selfish nature must have wrecked His plan at some points.  I mean God's perfect plan must not have included human sin - and not in any sense of a weakness or oversight by God, but our sin (even right from Adam and Eve) must have caused havoc for His perfect plan.

But God reigns, He is sovereign and in complete control so I don't think our actions of disobedience sway the conclusion of His plan in anyway, but the havoc and chaos we must cause when we are selfish, or not listening, or just plain disobedient just shows again how in control God is.

If anything I think we just make it harder for God to complete the plan He initiated with creation, sin has meant God had to provide a way for us to repair that relationship with Him, and the only way was for Him to give up Himself (how could we have made it any harder for Him than that!). But even today, even as Christians, we have to follow His plan and not our own; because God will still complete the work He set from the beginning, it is just selfish of us to make it harder on Him by disobeying.