I heard of a wife in England who had an unconverted husband. She resolved that she would pray every day for twelve months for his conversion. Every day at twelve o’clock she went to her room alone and cried to God. Her husband would not allow her to speak to him on the subject; but she could speak to God on his behalf. It may be that you have a friend who does not wish to be spoken with about his salvation; you can do as this woman did--go and pray to God about it. The twelve months passed away, and there was no sign of his yielding. She resolved to pray for six months longer; so every day she went alone and prayed for the conversion of her husband. The six months passed, and still there was no sign, no answer. The question arose in her mind, could she give him up? “No,” she said; “I will pray for him as long as God gives me breath.” That very day, when he came home to dinner, instead of going into the dining-room he went upstairs. She waited, and waited, and waited; but he did not come down to dinner. Finally she went to his room, and found him on his knees crying to God to have mercy upon him. God convicted him of sin; he not only became a Christian, but the Word of God had free course, and was glorified in him. God used him mightily. That was God answering the prayers of this Christian wife; she knocked, and knocked, till the answer came. I heard something the other day that cheered me greatly. Prayer had been made for a man for about forty years, but there was no sign of any answer. It seemed as though he was going down to his grave one of the most self-righteous men on the face of the earth. Conviction came in one night. In the morning he sent for the members of his family, and said to his daughter: “I want you to pray for me. Pray that God would forgive my sins; my whole life has been nothing but sin--sin.” And all this conviction came in one night. What we want is to press our case right up to the throne of God. I have often known cases of men who came to our meetings, and although they could not hear a word that was said, it seemed as though some unseen power laid hold of them, so that they were convicted and converted then and there.