Many people go without food for a time as an aid to their spiritual awareness, to concentrate their minds on spiritual matters, or as a sign to God that they are repentant, or to seek His help in some crisis. Israel were instructed to fast before the Day of Atonement (see Leviticus 16:29-31), and there are many examples in the Bible of individuals fasting in this way and for this reason.

In New Testament times Jesus rebukes the Jews for making a great outward show of fasting to parade their supposed piety, and warns his disciples not to be influenced by them (see Matthew 6:16-18).

Jesus fasted forty days before his temptation (see Matthew 4:1-2), and the apostle Paul and Barnabas fasted before setting out on their first missionary journey to Asia (see Acts 13:2-3).

Christians are not required to fast, but nor is it forbidden. It is for individuals to decide for themselves whether to fast as a contribution to their spiritual life.

Faith
  1. Trust
  2. Belief
Fall
Fast
Father
Fear
Fellowship
First Born
The "firstborn from the dead"
First fruits
Flesh
Fool
Forgive, Forgiveness
Foundation (Stone)
  1. The foundation of the earth
  2. The foundation of faith
Fulfil