7:51 You stiff-necked people, uncircumcised in heart and ears. They would not listen from their hearts, nor obey the Lord and the Scriptures Stephen had cited. These metaphors are Old Testament figures meaning spiritually stubborn and unregenerate (Ex. 32:9; 33:3, 5; Deut. 9:6; 10:16; 30:6; Jer. 4:4).