For the LORD had fast closed up all the wombs of the house of Abimelech, because of Sarah Abraham's wife.
Genesis 20:7
and now send back the man's wife, for he [is] inspired, and he doth pray for thee, and live thou; and if thou do not send back, know that dying thou dost die, thou, and all that thou hast.'
and Sarai saith unto Abram, 'Lo, I pray thee, Jehovah hath restrained me from bearing, go in, I pray thee, unto my handmaid; perhaps I am built up from her;' and Abram hearkeneth to the voice of Sarai.
And they send the ark of God to Ekron, and it cometh to pass, at the coming in of the ark of God to Ekron, that the Ekronites cry out, saying, 'They have brought round unto us the ark of the God of Israel, to put us to death -- and our people.'