"I swear unto you"

1. Mosiah 20: 24
     24 And it came to pass that the king was pacified towards his people; and he said unto them: Let us go forth to meet my people, without arms; and I swear unto you with an ^aoath that my people shall not slay thy people.
2. Alma 36: 1
     1 My ^ason, give ear to my words; for I swear unto you, that inasmuch as ye shall keep the commandments of God ye shall prosper in the land.
3. 3 Ne. 3: 8
     8 And behold, I ^aswear unto you, if ye will do this, with an oath, ye shall not be destroyed; but if ye will not do this, I swear unto you with an oath, that on the morrow month I will command that my armies shall come down against you, and they shall not stay their hand and shall spare not, but shall slay you, and shall let fall the sword upon you even until ye shall become extinct.