Our humility must come to predominate our pride. The prideful person is self-focused while the humble person is not. What are the motives for using coarse or vulgar language? There are many, but not one of them will cause a believer to edify others or glorify God. In fact, in the Bible, in every mention of coarse language, it is cast as part of sin or sinful itself. What was Isaiah’s lament when he saw the Lord high and lifted up?
1 In the year of King Uzziah’s death I saw the Lord sitting on a throne, high and lifted up, with the train of His robe filling the temple. 2 Seraphim stood above Him, each having six wings: with two he covered his face, and with two he covered his feet, and with two he flew. 3 And one called out to another and said, “Holy, Holy, Holy, is Yahweh of hosts; The whole earth is full of His glory.” 4 And the foundations of the thresholds shook at the voice of him who called out, while the house of God was filling with smoke. 5 Then I said, “Woe is me, for I am ruined! For I am a man of unclean lips, And I live among a people of unclean lips; For my eyes have seen the King, Yahweh of hosts.” 6 Then one of the seraphim flew to me with a burning coal in his hand, which he had taken from the altar with tongs. 7 And he touched my mouth with it and said, “Behold, this has touched your lips; and your iniquity is taken away, and your sin is atoned for.” Isaiah 6:1-7 (LSB)