When they heard these things they were cut to the heart, and they gnashed at him with their teeth.
Acts 7:54
Surrounding context
7:53 who have received the law by the direction of angels and have not kept it."
7:54 When they heard these things they were cut to the heart, and they gnashed at him with their teeth.
7:55 But he, being full of the Holy Spirit, gazed into heaven and saw the glory of God, and Jesus standing at the right hand of God,