When you meet, speak one to another of the promises. The promises are the support of the faith, the springs of joy, the saints' royal charter. Are you citizens of heaven and yet do not speak of your charter? Speak of the preciousness of Christ: He is beauty and love; He has laid down His blood as the price of your redemption. Have you a friend who has redeemed you and never speak of Him? Speak one to another of sin, what a deadly evil it is, how it has infected your virgin nature and turned it into a lesser hell. Speak of the beauty of holiness, which is the soul's embroidery, filling it with such an oriental splendor as makes God and the angels fall in love with it. Great Gain of Godliness, https://www.gracegems.org/Watson/religion_our_true_interest2.htm
You that are the people of God, do you often associate together: "Those who feared the LORD spoke to one another" (Mal. 3:16). Christ's doves should flock together; one Christian will help to heat another. A single coal of juniper will soon die, but many coals put together will keep life in one another. Conference sometimes may do as much good as preaching. One Christian by good discourse drops holy oil upon another; that makes the lamp of his grace to shine the brighter.Godly Man’s Picture, 239
If men can find no comfort and yet set themselves to teach and encourage weaker Christians, by way of reflection they receive frequently great comfort themselves. So doth God reward this duty of mutual discourse; that those things we did not so fully understand before by discourse we come to know and relish far better. This should teach us to love and often engage in holy conference, for besides the good we do to others, we shall be profited ourselves. Divine Meditations