god's grace in truth

John M. Frame in The Doctrine of the Knowledge of God:

Truth is used in various senses in Scripture. We may distinguish a "metaphysical" sense (the true is the absolute, the complete, as opposed to the relative, the partial, etc.-John 6:32, 35; 15:1; 17:3; Heb. 8:21; 1 John 5:20), an "epistemological" sense (the true is the correct-Deut. 17:4; 1 Kings 10:6; Eph. 4:24-i.e., "propositional truth"), and an "ethical" sense ("walking in" truth, i.e., doing right-Neh. 9:33; Pss. 15:2; 25:5; 26:3; 51:6 [note the parallel with wisdom]; 86:11; Ezek. 18:9; Hos. 4:1; John 3:20f.; Gal. 5:7; 1 John 1:6).48 Truth, like knowledge and wisdom, comes by grace, by trinitarian communication, by Word and by Spirit (Dan. 10:21; John 8:31f.; 14:6; 17:17 [cf. vv. 6, 8; 2 Sam. 7:28; Ps. 119:142, 160]; Rom. 2:8; 2 Cor. 4:2; 6:7; Gal. 2:5; Eph. 1:13; Col. 1:5; 2 Thess. 2:12; 1 Tim. 3:15; Jas. 3:14; 1 Peter 1:22; 2 Peter 2:2; Rev. 6:10; 15:3; 16:7).

... Being "wise" or "knowing the truth" in the fullest biblical sense is not merely knowing facts about theology (nor is it a kind of mystical knowledge devoid of propositional content). Wisdom and truth, like knowledge, are given by God's grace and in the deepest senses of the terms, involve obedience and intimate, personal involvement between Creator and creature.