Deliver themselves up

1. Mosiah 23: 29
     29 And it came to pass that the Lord did soften the hearts of the Lamanites. And Alma and his brethren went forth and delivered themselves up into their hands; and the Lamanites took possession of the land of Helam.
2. Alma 56: 56
     56 But behold, to my great joy, there had ^anot one soul of them fallen to the earth; yea, and they had fought as if with the ^bstrength of God; yea, never were men known to have fought with such miraculous strength; and with such mighty power did they fall upon the Lamanites, that they did frighten them; and for this cause did the Lamanites deliver themselves up as prisoners of war.
3. D&C 135: 4
     4 When Joseph went to Carthage to deliver himself up to the pretended requirements of the law, two or three days previous to his assassination, he said: “I am going like a ^alamb to the slaughter; but I am calm as a summer’s morning; I have a ^bconscience ^cvoid of offense towards God, and towards all men. I SHALL DIE INNOCENT, AND IT SHALL YET BE SAID OF ME—HE WAS MURDERED IN COLD BLOOD.”—The same morning, after Hyrum had made ready to go—shall it be said to the slaughter? yes, for so it was—he read the following paragraph, near the close of the twelfth chapter of Ether, in the Book of Mormon, and turned down the leaf upon it: