50:7 The Lord is the Servant’s only source of help (41:10, 13, 14; 49:8). The phrase not be disgraced means to be honored (49:7; 52:13). Like a flint indicates determination in the face of opposition (Ezek. 3:8, 9). For this prophecy’s fulfillment in Christ, see Luke 9:51.
50:7 — “For the Lord GOD will help Me; therefore I will not be disgraced; therefore I have set My face like a flint, and I know that I will not be ashamed.”
If you know and feel certain that God is for you, then you too can set your face like a flint, and “be steadfast, immovable, always abounding in the work of the Lord, knowing that your labor is not in vain” (1 Cor. 15:58).
50:7 set My face like flint. So sure was He of the Lord God’s help that He resolutely determined to remain unswayed by whatever hardship might await Him (cf. Eze 3:8, 9). Jesus demonstrated this determination in setting His face to go to Jerusalem to be crucified (Lk 9:51).
50:7my face like a flint. The servant chose his sufferings willingly and he moves forward with resolute determination, confident in God’s overruling help.
50:7I have set my face like flint The Servant’s faith in Yahweh will not be shaken, and is just as strong as Israel’s stubborn unwillingness to repent (48:4).
 Stanley, C. F. (2005). The Charles F. Stanley life principles Bible: New King James Version (Is 50:7). Nashville, TN: Nelson Bibles.
 MacArthur, J. F., Jr. (2006). The MacArthur study Bible: New American Standard Bible. (Is 50:7). Nashville, TN: Thomas Nelson Publishers.