3 Nephi 11:14; “Arise and come forth unto me, that ye may thrust your hands into my side, and also that ye may feel the prints of the nails in my hands and in my feet, that ye may know that I am the God of Israel, and the God of the whole earth, and have been slain for the sins of the world.”
John 3:14-15; “And as Moses lifted up the serpent in the wilderness, even so must the Son of man be lifted up:15 That whosoever believeth in him should not perish, but have eternal life.”
The Mormons do not believe Jesus was slain for the sins of the world. They teach that Jesus bled in the Garden of Gethsemane for man’s sins.
D&C 21:9; “For, behold, I will bless all those who labor in my vineyard with a mighty blessing, and they shall believe on his words, which are given him through me by the Comforter, which manifesteth that Jesus was crucified by sinful men for the sins of the world, yea, for the remission of sins unto the contrite heart.”
Mention of the cross…
D&C 76:69; “These are they who are just men made perfect through Jesus the mediator of the new covenant, who wrought out this perfect atonement through the shedding of his own blood.”
No mention of the cross…
John 15:13; “Greater love hath no man than this, that a man lay down his life for his friends.”
If Jesus had paid the price for sins in the Garden of Gethsemane then He lied in John 15:13.