He was at this time overworking, writing sometimes fourteen hours a day, and this induced nervous depression, which exposed him to various temptations. He ventured into a confectioner's shop where wine and beer were sold, and then suffered reproaches of conscience for conduct so unbecoming a believer; and he found himself indulging ungracious and ungrateful thoughts of God, who, instead of visiting him with deserved chastisement, multiplied His tender mercies. He wrote to a rich, liberal and titled lady, asking a loan, and received the exact sum asked for, with a letter, not from her, but from another into whose hands his letter had fallen by "a peculiar providence," and who signed it as "An adoring worshipper of the Saviour Jesus Christ." While led to send the money asked for, the writer added wise words of caution and counsel--words so fitted to George Muller's exact need that he saw plainly the higher Hand that had guided the anonymous writer. In that letter he was urged to "seek by watching and prayer to be delivered from all vanity and self-complacency," to make it his "chief aim to be more and more humble, faithful, and quiet," and not to be of those who "say 'Lord, Lord,' but have Him not deeply in their hearts." He was also reminded that "Christianity consists not in words but in power, and that there must be life in us." He was deeply moved by this message from God through an unknown party, and the more as it had come, with its enclosure, at the time when he was not only guilty of conduct unbecoming a disciple, but indulging hard thoughts of his heavenly Father. He went out to walk alone, and was so deeply wrought on by God's goodness and his own ingratitude that he knelt behind a hedge, and, though in snow a foot deep, he forgot himself for a half-hour in praise, prayer, and self-surrender. Yet so deceitful is the human heart that a few weeks later he was in such a backslidden state that, for a time, he was again both careless and prayerless, and one day sought to drown the voice of conscience in the wine-cup. The merciful Father gave not up his child to folly and sin. He who once could have gone to great lengths in dissipation now found a few glasses of wine more than enough; his relish for such pleasures was gone, and so was the power to silence the still small voice of conscience and of the Spirit of God.