Between 1742 and his death in 1747, David Brainerd took the gospel to the North American Indians in New Jersey, Pennsylvania and Massachusetts. He willingly ran any risk and accepted any hardship to fulfil his calling as a missionary. The amount of work which he achieved in such unpromising and difficult circumstances now seems almost incredible. His total dedication to the cause of making Christ known inspired the finest of missionaries who followed in his footsteps: William Carey, who loved Brainerd's writings, confessed, "I was much humbled today by reading Brainerd. O, what a disparity betwixt me and him! He always constant; I as inconstant as the wind." Today his life continues to minister encouragement to the servants of God, as John Piper testifies, "for me...Brainerd's life is a vivid, powerful testimony to the truth that God can and does use weak, sick, discouraged, beat-down, lonely, struggling saints, who cry to him day and night, to accomplish amazing things for his glory."