According to Todd Parker, the priests of Noah who brought charges against Abinadi wanted to get rid of him because he was testifying of their iniquities. But they couldn't just pull a charge out of the air; they had to have legal charges according to the law of Moses. These legal charges have been summarized in a chart (see illustration). [Todd Parker, "Abinadi: The Man and the Message (Part 1)," F.A.R.M.S., Figure 5]
Abinadi was first accused of lying about the king and prophesying falsely. Both accusations were violations under the law of Moses (Mosiah 13:23; Exodus 20:16; Deuteronomy 18:20-22). Abinadi was next accused of blasphemy (Mosiah 17:8), another capital offense under the law of Moses (Leviticus 24:10-16). Lastly, the priests accused Abinadi of reviling against the king (Mosiah 17:12; Exodus 22:28). On this ground Noah condemned Abinadi, and his priestly accusers scourged and burned him. [Lew W. Cramer, "Abinadi," in Encyclopedia of Mormonism, Vol. 1, p. 6]
Mosiah 12:9-10 [Abinadi] has prophesied evil concerning thy people . . . and he also prophesieth evil concerning thy life ([Illustration]): Legal Charges Brought Against Abinadi. [Todd Parker, "Abinadi: The Man and the Message (Part 1)," F.A.R.M.S., Figure 5]