KEACH'S CATECHISM (1677)
Q. 4. What is the Word of God?
A. The Scriptures of the Old and New Testaments, being given by divine inspiration, are the Word of God, the only infallible rule of faith and practice.
(2 Peter 1:21; 2 Timothy 3:16,17; Isaiah 8:20)
Q. 5. How do we know that the Bible is the Word of God?
A. The Bible evidences itself to be God's Word by the heavenliness of its doctrine, the unity of its parts, its power to convert sinners and to edify saints; but the Spirit of God only, bearing witness by and with the Scriptures in our hearts, is able fully to persuade us that the Bible is the Word of God.
(1 Cor. 2:6,7,13; Ps. 119:18, 129; Acts 10:43, 26:22; Acts 18:28; Heb 4:12; Ps. 19:7-9; Rom. 15:4; John 16:13,14; 1 John 2:20-27; 2 Cor. 3:14-17)
Q. 6. May all men make use of the Scriptures?
A. All men are not only permitted, but commanded and exhorted, to read, hear, and understand the Scriptures.
(John 5:39; Luke 16:29; Acts 8:28-30; 17:11)
Q. 7. What do the Scriptures principally teach?
A. The Scriptures principally teach what man is to believe concerning God and what duty God requires of man.
(2 Tim. 3:16,17; John 20:31; Acts 24:14; 1 Cor. 10:11; Eccles. 12:13)