19在创世记十五章,神应许亚伯拉罕必会有后嗣,亚伯拉罕也相信神。然而,就在下一章,因着亚伯拉罕没有从撒拉得孩子,他就听从撒拉的建议,从她的使女夏甲得孩子。夏甲生了一个儿子,起名叫以实玛利。亚伯拉罕从夏甲得的孩子,神并不喜悦,祂就十三年之久不再向亚伯拉罕显现。当耶和华再次向亚伯拉罕显现时,……〔祂〕向亚伯拉罕指明,祂的恩典要使亚伯拉罕产生一个儿子;〔参十七1~2;〕但亚伯拉罕凭着自己所作的,却是出于肉体,他这样作就被神定罪。……耶和华对亚伯拉罕说,“你妻子撒拉必给你生一个儿子,你要给他起名叫以撒。我要与他坚定所立的约,作他后裔永远的约。”(19)在十八章,耶和华再次向亚伯拉罕显现,对他说,“在生命的时候(原文),我必回到你这里;你的妻子撒拉必生一个儿子。”(10上)这指明以撒的出生是出于耶和华的来临。这好比马利亚的生出耶稣,乃是三一神的来临。至终,撒拉真的生出了以撒(二一1~3)。 19In Genesis 15 God promised Abraham that he would have an heir, and Abraham believed God. However, in the very next chapter, because Abraham did not have a child by Sarah, he followed Sarah’s suggestion to have a child by Hagar, her handmaid. Hagar gave birth to a son, and he was called Ishmael. Abraham’s having a child by Hagar was displeasing to God, and He did not appear again to Abraham for thirteen years. When the Lord appeared to Abraham again,…[He] indicated to Abraham that His grace would produce a son by him [cf. Gen. 17:1-2]. But what Abraham had done by himself was of the flesh and as such was condemned by God…The Lord…said to Abraham, “Sarah your wife will bear you a son, and you shall call his name Isaac; and I will establish My covenant with him for an everlasting covenant for his seed after him” (v. 19). In Genesis 18 the Lord appeared to Abraham again and said to him, “I will certainly return to you according to the time of life, and then Sarah your wife shall have a son” (v. 10a). This indicates that the bringing forth of Isaac would be of the Lord’s coming. This may be compared to Mary’s bringing forth of Jesus being the coming of the Triune God. Eventually, Sarah did give birth to Isaac (Gen. 21:1-3).