"Do not be distressed and do not be angry with yourselves for selling me here, because it was to save lives that God sent me ahead of you." (Gen. 45:5)
And, again, a moment or two later, he again affirms,
"God sent me ahead of you to preserve a remnant on earth and to save your lives by a great deliverance. So, then, it was not you who sent me here, but God." (Gen. 45:7-8)
After all the years in which bitterness could have made his heart an acrid, barren place, Joseph displays a breathtaking grasp of God's sovereign ways and a humble willingness to embrace God's purposes through his suffering and so to embrace his brothers in forgiving grace. And his readiness to forgive carved out for his brothers an opportunity to demonstrate repentance and so to receive that forgiveness.
All of which leads us, of course and with great power, to see afresh the glory of the submission and humility of our Lord Jesus on the cross. How deeply and joyously glad we can be for the words of Jesus, "Father, forgive them, they don't know what they're doing."
Make me, too, O Lord, a channel of your peace.