Colossians 4:6

“Let your speech be always with grace, etc.] “In grace, or concerning grace”: let grace be the subject matter of your speech and conversation. When saints meet together they should converse with each other about the work of grace upon their souls, how it was begun, and how it has been carried on, and in what case it now is; they should talk of the great things and wonders of grace, which God has done for them, which would be both comfortable and edifying to them, and make for the glory of the grace of God; and also, they should confer together about the doctrines of grace, and so instruct, establish, and build up one another in them; and at least their conversation should always turn on…”

“with grace--Greek, "IN grace" as its element (Col 3:16; Eph 4:29). Contrast the case of those "of the world" who "therefore speak of the world" (Jo1 4:5). Even the smallest leaf of the believer should be full of the sap of the Holy Spirit (Jer 17:7-8). His conversation should be cheerful without levity, serious without gloom. Compare Luk 4:22; Joh 7:46, as to Jesus' speech. seasoned with salt--that is, the savor of fresh and lively spiritual wisdom and earnestness, excluding all "corrupt communication," and also tasteless insipidity (Mat 5:13; Mar 9:50; Eph 4:29). Compare all the sacrifices seasoned with salt (Lev 2:13). Not far from Colosse, in Phrygia, there was a salt lake, which gives to…”

“Let your speech - Your conversation. In the previous verse the apostle had given a general direction that our conduct toward those who are not professing Christians should be wise and prudent; he here gives a particular direction in regard to our conversation. Be alway with grace - Imbued with the spirit of religion. It should be such as religion is fitted to produce; such as to show that the grace of God is in our hearts. Bloomfield supposes that this means “courteous and agreeable, not morose and melancholy.” But though this may be included, and though the rule here laid down would lead to that, it cannot be all that is intended. It rather means that our conversation should be such as to…”

“Let your speech be always with grace - Seasoned with the grace of God, as flesh is with salt. Colossians 4:10”

“4:6 attractive (literally seasoned with salt): Salt is both a seasoning and a preservative (see Matt 5:13). Paul might be encouraging Christians to speak to unbelievers in words that are well chosen and winsome. The rabbis occasionally referred to wisdom as salt, so Paul might also be exhorting Christians to speak wisely.”

“your: Col 3:16; Deu 6:6, Deu 6:7, Deu 11:19; Ch1 16:24; Psa 37:30, Psa 37:31, Psa 40:9, Psa 40:10, Psa 45:2, Psa 66:16; Psa 71:15-18, Psa 71:23, Psa 71:24, Psa 78:3, Psa 78:4, Psa 105:2, Psa 119:13, Psa 119:46; Pro 10:21, Pro 15:4, Pro 15:7; Pro 16:21-24, Pro 22:17, Pro 22:18, Pro 25:11, Pro 25:12; Ecc 10:12; Mal 3:16-18; Mat 12:34, Mat 12:35; Luk 4:22; Eph 4:29 seasoned: Lev 2:13; Kg2 2:20-22; Mat 5:13; Mar 9:50 how: Pro 26:4, Pro 26:5; Luke 20:20-40; Pe1 3:15 Colossians 4:7”