Fasting, similar to other actions in life, has specific purposes and appointed times. The Bible offers various reasons why people might fast: an immediate need in prayer (2 Samuel 12:16), a need to loosen the bands of wickedness or undo heavy burdens (Isaiah 58:6), during times of elevated conflict or duty in service (Matthew 17:21; Acts 13:3), as a symbol of mourning (2 Samuel 1:12), and as an outward manifestation of true repentance (Jonah 3:5). This list is not exhaustive, but simply demonstrates that God’s people have many good reasons for fasting. Even if none of these circumstances surfaces in our lives, we should fast because we know that the Lord expects us to do so.
As we have previously studied, God is the believer’s source of joy. Specifically, God’s indwelling presence makes this an accessible virtue. The Lord indwells those who are saved and does so through the person of the Holy Ghost. It should, therefore, come as no surprise that the disciples who were filled with the Holy Ghost were also filled with joy. God identifies the nature of the kingdom of God as “righteousness, and peace, and joy in the Holy Ghost” (Romans 14:17). This is why the Bible includes joy and peace when it defines the ninefold fruit of the Spirit (Galatians 5:22). This is why the believers in Thessalonica received the word “with joy of the Holy Ghost” (1 Thessalonians 1:6). The more the Holy Ghost has control, the more joy from the Lord a man will experience.
