JST, Mark 14:20–26. Compare Mark 14:22–25
Jesus institutes the sacrament in remembrance of His body and blood.
20 And as they did eat, Jesus took bread and blessed it, and brake, and gave to them, and said, Take it, and eat.
21 Behold, this is for you to do in remembrance of my body; for as oft as ye do this ye will remember this hour that I was with you.
22 And he took the cup, and when he had given thanks, he gave it to them; and they all drank of it.
23 And he said unto them, This is in remembrance of my blood which is shed for many, and the new testament which I give unto you; for of me ye shall bear record unto all the world.
24 And as oft as ye do this ordinance, ye will remember me in this hour that I was with you and drank with you of this cup, even the last time in my ministry.
25 Verily I say unto you, Of this ye shall bear record; for I will no more drink of the fruit of the vine with you, until that day that I drink it new in the kingdom of God.
26 And now they were grieved, and wept over him.
JST, Mark 14:36–38. Compare Mark 14:32–34
At Gethsemane, even the Twelve do not fully grasp Jesus’ role as the Messiah.
36 And they came to a place which was named Gethsemane, which was a garden; and the disciples began to be sore amazed, and to be very heavy, and to complain in their hearts, wondering if this be the Messiah.
37 And Jesus knowing their hearts, said to his disciples, Sit ye here, while I shall pray.
38 And he taketh with him, Peter, and James, and John, and rebuked them, and said unto them, My soul is exceeding sorrowful, even unto death; tarry ye here and watch.