A godly man is a lover of the saints. The best way to discern grace in oneself is to love grace in others: "We know that we have passed from death to life, because we love the brethren" (1 John 3:14). What is religion but religation, a knitting together of hearts; faith knits us to God, and love knits us one to another.
If you would be pure, walk with them that are pure; as the communion of saints is in our creed, so it should be in our company (Prov. 13:20). "He that walketh with wise men shall be wise"; and he that walketh with the pure shall be pure. The saints are like a bed of spices; by intermixing ourselves with them we shall partake of their savoriness. Association begets assimilation; sometimes God blesses good society to the conversion of others.
Love God in His saints and delightfully converse with Christ in them while thou hast opportunity. But remember thou livest not upon them or on their love, but upon God. And therefore desire their company but for His; and if thou hast His, be content if thou hast not theirs. He wants not man that enjoys God.