Between Second Thessalonians and First Timothy we read two Psalms.
September 14: Psalm 104, Psalm 105 (click on the chapter to begin reading).
Psalm 104. God is Lord of all creation. He is worthy of all praise. Let us count the ways.
Psalm 105. God is faithful to His Covenant people, and retells the account of what He did for the Hebrews from Abraham to the wanderings in the wilderness.