John Piper preached on Psalm 106 last weekend and related the passage to abortion. You can find the sermon text here. Then Abraham Piper added some great resources on different types of abortion procedures as well as some crisis pregnancy centers.

Piper’s closing prayer:

I pray that the horrors of abortion and the glory of God’s grace will move you to take up the challenge of prayer on the back of the worship folder and to extend yourself in other practical ways for life, both temporal and eternal. Amen.

Give justice to the weak and the fatherless;
maintain the rights of the afflicted and the destitute.
Rescue the weak and the needy;
deliver them from the hand of the wicked.
(Psalm 82:3-4)