This can be stated in active form. Alternate translation: "neither did anyone find deceit in his mouth" (See: [[rc://en/ta/man/jit/figs-activepassive]])
Here "deceit" refers to words that a person speaks that are intended to deceive other people. Alternate translation: "neither did he speak any lies" (See: [[rc://en/ta/man/jit/figs-metonymy]])