New Defender's Study Bible Notes
27:5 Rebekah heard. Isaac, knowing he was wrong in deciding to transmit the blessing to Esau, was secretive about his plans. His actions would wrongly award Esau the place of both physical and spiritual preeminence in the family (Genesis 27:29) The blessing was intended by God for the line of the promised Seed. Rebekah just happened to overhear Isaac’s plans. At this time, Jacob and Esau were probably about 75 years old, and Isaac 135.