Here is the prayer:
I am feeling weak. But you, O God, are strong. And you give strength to your people. As you gave strength to Abraham, so keep me strong in my faith. As you gave strength to Moses, so keep me strong over the long haul. And as you gave strength to David, so keep me strong in the face of giant obstacles.
This prayer helps me to remember that I am not alone whenever I feel weak. Our great patriarchs felt weak in their lives, and God gave them strength. Abraham in his old age (and Sarah in her old age) were promised a son but it didn’t happen right away. But God gave Abraham strength to have faith in the promise. And Isaac was born in God’s time. God even gave Abraham the strength to be willing to sacrifice that son until an angel stopped him from going through with it. That same strength from God keeps me strong in my faith in him no matter what the promise or test.
I think of Moses, too, who felt weak in leading the Israelites out of slavery, saying he didn’t speak well. But God gave him strength to lead his people out of Egypt and guide them on a 40-year journey through the wilderness to the doorstep of the Promised Land. That same strength from God keeps me patient and confident in the extensive journeys through my life and through any qualms I may have of not being capable of completing the plans he has for me.
Then there is David, who as a young shepherd boy, seemed to be no match to the giant Goliath. But God gave David strength to fling his slingshot with a stone and fell that foe. God gives me that same strength against the giant foe of the devil that I may defeat his slings and arrows with the Word of God in my arsenal. I may be small in the grand scheme of things, but I am mighty in the presence of the Lord. Let me never forget that.