Believing as Abraham was, he could not forbear smiling when God said that Sarah would be the mother of the promised seed. This incredulity of Abraham was so significant that it was commemorated in the name of Isaac, the laugher. This heir was typical of all God's best gifts, at first reckoned impossible, at last filling the heart with gladness. The smile of incredulity became the laughter of joy when the child was born and Sarah said, "God hath made me to laugh, so that all that hear will laugh with me." It is they who expect things so incongruous and so impossible to nature unaided that they smile even while they believe, who will one day find their hopes fulfilled and their hearts running over with joyful laughter. If your heart is fixed only on what you can accomplish for yourself, no great joy can ever be yours. But frame your actual hopes in accordance with the promise of God, expect holiness, fulness of joy, animating partnership with God in the highest matters, the resurrection of the dead, the life everlasting, and one day you will say, "God hath made me to laugh." But Abraham prostrating himself to hide a smile is the symbol of our common attitude. We profess to believe in a God of unspeakable power and goodness, but even while we do so we find it impossible to attach a sense of reality to His promises. They are kindly, well-intentioned words, but are apparently spoken in neglect of solid, obstinate facts. How hard is it for us to learn that God is the great reality, and that the reality of all else may be measured by its relation to Him. Sarah's laughter had a different meaning. Indeed Sarah does not appear to have been by any means a blameless character. Her conduct towards Hagar showed us that she was a woman capable of generous impulses but not of the strain of continued magnanimous conduct. She was capable of yielding her wifely rights on the impulse of the brilliant scheme that had struck her, but like many other persons who can begin a magnanimous or generous course of conduct, she could not follow it up to the end, but failed disgracefully in her conduct towards her rival. So now again she betrays characteristic weakness. When the strangers came to Abraham's tent, and announced that she was to become a mother, she smiled in superior, self-assured, woman's wisdom. When the promise threatened no longer to hover over her household as a mere sublime and exalting idea which serves its purpose if it keep them in mind that God has spoken to them, but to take place now among the actualities of daily occurrence, she hails this announcement with a laugh of total incredulity. Whatever she had made of God's word, she had not thought it was really and veritably to come to pass; she smiled at the simplicity which could speak of such an unheard-of thing.