Sometimes you don't have an hour to pray. I know it, you know it, we all know it. Yes, it is true that we should be like Martin Luther, who spent three hours per day in prayer because he did not have time to pray any less. Yes, you can often accomplish more tasks, and more important tasks, after prayer. But all the same, sometimes the pressure of events and circumstances is such that you need to pray quickly and you need to pray for a speedy answer. Once again, our psalm is a psalm of the Passion of our Lord Jesus Christ. We know that because it is a psalm of remembrance according to the title, and that word "remembrance" pops up in the New Testament exclusively in the context of the Lord's Supper: "This do in remembrance of me." Psalm 70 is a psalm in remembrance of Him. It is, in fact, a prayer from the cross. And it is a prayer that our King shares with us, teaching us to pray for speedy help too when danger is near. This psalm functions as a summary of Pss 69 & 71; it's the quick version, the one you can pray when you're desperate for God to shame your enemies and save your people.