לָ֤מָּה תֹאמַר֙ יַֽעֲקֹ֔ב וּתְדַבֵּ֖ר יִשְׂרָאֵ֑ל נִסְתְּרָ֤ה דַרְכִּי֙ מֵֽיְהוָ֔ה וּמֵאֱלֹהַ֖י מִשְׁפָּטִ֥י יַעֲבֽוֹר׃
Why sayest thou, O Jacob, and speakest, O Israel: ‘My way is hid from the LORD, and my right is passed over from my God’?
Read halakhic rulings (Jewish law) on Isaiah 40:27: and classical halakhic sources.