There are many parallels between King Bejamin’s speech (found in Mosiah 2–5) and phrases and ideas already present in Joseph Smith’s early 1800s milieu, many of them in the 1769 King James Bible.

Mosiah 2:21 ... unprofitable servants ... unprofitable servants Luke 17:9–10
Mosiah 2:37 ...for he dwelleth not in unholy temples Will God dwell in an unholy temple? Works of Isaac Penington, Massachussets 1818
Mosiah 3:5 ...the Lord Omnipotent who reigneth the Lord God omnipotent reigneth Revelation 19:6
Mosiah 3:13 ... to every kinred, nation, and tongue ... ... to every nation, and kindred, and tongue, and people ... Revelation 14:6
Mosiah 3:17 salvation can come unto the children of men, only in and through the name of Christ the Lord Omnipotent. ...salvation in any other: for there is none other name under heaven given among men, whereby we must be saved. Acts 4:12
Mosiah 3:18 become as little children become as little children Matthew 18:3
Mosiah 3:20 every nation, kindred, tongue, and people. ... to every nation, and kindred, and tongue, and people ... Revelation 14:6
Mosiah 3:21 the Lord God Omnipotent. ...the Lord God omnipotent reigneth. Revelation 19:6
Mosiah 3:27 their torment is as a lake of fire and brimstone whose flames are unquenchable and whose smoke ascendeth up forever and ever. ...he shall be tormented with fire and brimstone in the presence of the holy angels... And the smoke of their torment ascendeth up for ever and ever Revelation 14:10–11
Mosiah 4:6 prepared from the foundation of the world ... prepared for you from the foundation of the world... Matthew 25:34
Mosiah 4:9 Believe that he is ...believe that he is ... Hebrews 11:6
Mosiah 5:8 there is no other head whereby ye can be made free; there is no other name given whereby salvation cometh ...there salvation in any other: for there is none other name under heaven given among men, whereby we must be saved. Acts 4:12
Mosiah 5:13 the thoughts and intents of his heart? ...the thoughts and intents of the heart. Hebrews 4:12
Mosiah 5:15 be steadfast and immovable, always abounding in good works be ye stedfast, unmoveable, always abounding in the work of the Lord... 1 Corinthians 15:58
Mosiah 5:15 ...the Lord God Omnipotent... the Lord God omnipotent Revelation 19:6