Mighty change in their hearts

1. Mosiah 5: 2
   2 And they all cried with one voice, saying: Yea, we believe all the words which thou hast spoken unto us; and also, we know of their surety and truth, because of the Spirit of the Lord Omnipotent, which has wrought a mighty change in us, or in our hearts, that we have no more disposition to do evil, but to do good continually.
2. Alma 5: 12-14
   12 And according to his faith there was a mighty change wrought in his heart. Behold I say unto you that this is all true.
   13 And behold, he preached the word unto your fathers, and a mighty change was also wrought in their hearts, and they humbled themselves and put their trust in the true and living God. And behold, they were faithful until the end; therefore they were saved.
   14 And now behold, I ask of you, my brethren of the church, have ye spiritually been born of God? Have ye received his image in your countenances? Have ye experienced this mighty change in your hearts?