וַאדֹנָ֤י יְהוִה֙ יַֽעֲזָר־לִ֔י עַל־כֵּ֖ן לֹ֣א נִכְלָ֑מְתִּי עַל־כֵּ֞ן שַׂ֤מְתִּי פָנַי֙ כַּֽחַלָּמִ֔ישׁ וָאֵדַ֖ע כִּי־לֹ֥א אֵבֽוֹשׁ׃
Ибо Господь Бог поможет мне; Поэтому я не был смущен; Поэтому я установил свое лицо, как кремень, И я знаю, что мне не будет стыдно.
Ibn Ezra
I shall not be ashamed. God will fulfil all the words prophesied by me.
Tze'enah Ure'enah
“The Lord God will help me, etc.” [50:7]. The prophet said: if they will beat me, the Holy One will not give me into their hands to kill me. God helps me and therefore, I am not afraid to publicly reprove. I have made my face as a strong rock to go on and to reprove the people. I know well that I say everything for the sake of the Holy One that will certainly come and publicly utter the words of God.12Radak, Isaiah, 50:7.