William Wilberforce's Source of Strength

When wanting to faint after years of fighting against slave trade William Wilberforce leaned upon the Lord for his strength. On his forty-first birthday, as rededicated himself to his calling, he prayed, “Oh Lord, purify my soul from all its stains. Warm my heart with the love of thee, animate my sluggish nature and fix my inconstancy, and volatility, that I may not be weary in well doing.”

SOURCE: John Piper, Amazing Grace in the Life of William Wilberforce, pg 48