Matthew 5:20 For verily I say unto you, heaven and earth must pass away, but one
jot or one tittle shall in no wise pass from the law, until all be fulfilled.
Alma 16:213 But the law requireth the life of him who hath murdered; therefore there can be nothing, which is short of an infinite atonement, which will suffice for the sins of the world; therefore it is expedient that there should be a great and last sacrifice;
3 Nephi 1:30 But it came to pass that they soon became converted, and were convinced of the error which they were in, for it was made known unto them that the law was not yet fulfilled, and that it must be fulfilled in every whit;
