A. The Scriptures principally teach what man is to believe concerning God, [a] and what duty God requires of man [b].

[a]. Gen. 1:1; John 5:39; 20:31; Rom. 10:17; 2 Tim. 3:15

[b]. Deut. 10:12-13; Josh. 1:8; Ps. 119:105; Mic. 6:8; 2 Tim.

3:16-17

Source: https://www.apuritansmind.com/westminster-standards/shorter-catechism/