Jeremiah 2:34

Poor innocents. Among these were doubtless those who suffered because of the miscarriage of justice (see Jer. 7:6; 19:4; 22:3, 17; Micah 3:10), the children who were sacrificed to Molech, and the prophets and other martyrs slain, especially during the reign of Manasseh (see Jer. 2:30; 2 Kings 21:16; 24:3, 4).

I have not found. Or, “you have not found.” The Hebrew may be translated as either the first person singular or the second person feminine singular.

Secret search. Heb. machtereth, “a breaking in [as of a house],” as in burglary. The entire clause may be translated, “Not in the act of breaking in did you find them.” This translation suggests that the innocents, who were slain, had not been detected in any crime (see v. 30). If those slain had been guilty of some serious crime, such as “breaking in,” the law would not have attributed criminal responsibility to anyone who smote them in the act (see on Ex. 22:2). But these martyrs were “poor innocents,” not criminals. As translated in the KJV the entire passage seems to mean that guilt was so open and apparent that God did not need to search for it.