We glorify God by standing up for His truths. Much of God’s glory lies in His truth. God has entrusted us with His truth, as a master entrusts His servant with His purse to keep. We have not a richer jewel to trust God with than our souls, nor has God a richer jewel to trust us with than His truth. Truth is a beam that shines from God. Much of His glory lies in His truth. When we are advocates for truth we glorify God. Jude calls us to, “Contend earnestly for the truth.” The Greek word to contend signifies great contending, as one would contend for his land and not suffer his right to be taken from him; so we should contend for the truth. Were there more of this holy contention God would have more glory. Some contend earnestly for trifles and ceremonies, but not for truth. We should count him indiscreet that would contend more for a picture than for his inheritance; for a box of counters than for his box of title deeds. (Taken from Body of Divinity, p. 15).
A Pilgrim's Friend 