Ephraim will be like a bird; what they value ¹  will fly away. They will not bear children – they will not enjoy pregnancy – they will not even conceive! ² 

To the woman he said, “I will greatly increase ¹  your labor pains; ²  with pain you will give birth to children. You will want to control your husband, ³  but he will dominate ⁴  you.”

So Boaz married Ruth and had sexual relations with her. ¹  The Lord enabled her to conceive ²  and she gave birth to a son.