The Church Of God International provides these free courses to help you grow in strength and knowledge of His Word. Click a link to view a PDF workbook:

Lessons

Understanding Repentance
Understanding Faith
Understanding Baptism
Understanding the Laying-On of Hands
Understanding Resurrection
Understanding Eternal Judgment
Understanding Perfection
Understanding the Sabbath
Understanding Passover
Understanding the Feast of Unleavened Bread
Understanding the Day Of Pentecost
Understanding the Feast of Trumpets
Understanding Atonement
Understanding the Feast of Tabernacles
Understanding the Last Great Day

Understanding the Holy Spirit
Understanding the Sanctified and Unsanctified Feasts
Understanding Clean and Unclean Meats
Understanding the Pagan Trinity