Holy and reverend is his name. Psalm 111:9.
Those who are brought into covenant relation with God are pledged to speak of Him in the most respectful, reverential manner…
Swearing, and all words spoken in the form of an oath, are dishonoring to God. The Lord sees, the Lord hears, and He will not hold the transgressor guiltless. He will not be mocked. Those who take the name of the Lord in vain will find it a fearful thing to fall into the hands of the living God.13Manuscript 126, 1901.
By the thoughtless mention of God in common conversation, by appeals to Him in trivial matters, and by the frequent and thoughtless repetition of His name, we dishonor Him.14Patriarchs and Prophets, 306, 307.
What faint views some have of the holiness of God, and how much they take His holy and reverend name in vain, without realizing that it is God, the great and terrible God, of whom they are speaking. While praying, many use careless and irreverent expressions, which grieve the tender Spirit of the Lord and cause their petitions to be shut out of heaven.15Early Writings, 70.
“Holy and reverend is His name.” We are never in any manner to treat lightly the titles or appellations of the Deity. In prayer we enter the audience chamber of the Most High, and we should come before Him with holy awe. The angels veil their faces in His presence. The cherubim and the bright and holy seraphim approach His throne with solemn reverence. How much more should we, finite, sinful beings, come in a reverent manner before the Lord, our Maker! 16Thoughts from the Mount of Blessing, 106.