Mosiah 18: 1-3
What changed between the time that Abinadi preached and was taken directly before Noah, and the time Alma preached and many people believed his words? The only obvious answer is that Alma was known among the people as having been in Noah’s court. That might have given him more credibility among the people. The only other thing that we know of that I could see having such an effect n the people was seeing that Abinadi was killed for nothing more than words. He had not advocated violence or overthrow of the king. Perhaps people saw his death as evidence that Noah really was as wicked as Abinadi had been saying.