C. F. Keil and Franz Delitzsch on 2 Kings 24:3-5

2Ki 24:3-5 יי על־פּי אך: “only according to the mouth (command) of Jehovah did this take place against Judah,” i.e., for no other reason than because the Lord had determined to put away Judah from before His face because of Manasseh’s sins (cf. 2Ki 21:12-16, and 2Ki 23:27). “And Jehovah would not forgive,” even if the greatest intercessors, Moses and Samuel, had come before Him (Jer 15:1.), because the measure of the sins was full, so that God was obliged to punish according to His holy righteousness. We must repeat בּ from the preceding words before הנּקי דּם.