We have proved this to be the case by such a statement as that in Isaiah 6:9: ear ye indeed, but understand not, and see ye indeed (margin: ontinually but perceive not.This is the condition lying behind our basic quotation in Acts 13:27.
Rebellious Heart
Israel is a prime example of a people that heard but did not listen – until they reached a point of prideful rebellion, where Jesus had to say: hearing ye shall hear, and shall not understand; and seeing ye shall see, and shall not perceive Matthew 13:14 and Isaiah 6:9.