Fast

The sole fast required by the law of Moses was that of the great Day of Atonement (q.v.), Leviticus 23:26-32. It is called "the fast" (Acts 27:9).

The only other mention of a periodical fast in the Old Testament is in Zechariah 7:1-7; 8:19, from which it appears that during their captivity the Jews observed four annual fasts.

The fast of the fourth month, kept on the seventeenth day of Tammuz, the anniversary of the capture of Jerusalem by the Chaldeans; to commemorate also the incident recorded Exodus 32:19. (Compare Jeremiah 52:6,7.)

The fast of the fifth month, kept on the ninth of Ab (Compare Numbers 14:27), to commemorate the burning of the city and temple (Jeremiah 52:12,13).

The fast of the seventh month, kept on the third of Tisri (Compare 2 Kings 25), the anniversary of the murder of Gedaliah (Jeremiah 41:1,2).

The fast of the tenth month (Compare Jeremiah 52:4; Ezek. 33:21; 2Kings 25:1), to commemorate the beginning of the siege of the holy city by Nebuchadnezzar.

There was in addition to these the fast appointed by (Esther 4:16).

Public national fasts on account of sin or to supplicate divine favour were sometimes held. 1 Samuel 7:6; 2 Chronicles 20:3; Jeremiah 36:6-10; Nehemiah 9:1.

There were also local fasts. Judges 20:26; 2 Samuel 1:12; 1 Samuel 31:13; 1 Kings 21:9-12; Ezra 8:21-23: Jonah 3:5-9.

There are many instances of private occasional fasting (1 Samuel 1:7: 20:34; 2Sam 3:35; 12:16; 1 Kings 21:27; Ezra 10:6; Nehemiah 1:4; Daniel 10:2,3). Moses fasted forty days (Exodus 24:18; 34:28), and so also did Elijah (1 Kings 19:8). Our Lord fasted forty days in the wilderness (Matthew 4:2).

In the lapse of time the practice of fasting was lamentably abused (Isaiah 58:4; Jeremiah 14:12; Zechariah 7:5). Our Lord rebuked the Pharisees for their hypocritical pretences in fasting (Matthew 6:16). He himself appointed no fast. The early Christians, however, observed the ordinary fasts according to the law of their fathers (Acts 13:3; 14:23; 2co 6:5).

Source: Easton's Bible Dictionary
Fast

F'AST, a.

1. Literally, set, stopped, fixed, or pressed close. Hence, close; tight; as, make fast the door; take fast hold.
2. Firm; immovable.

Who by his strength, setteth fast the mountains. Ps. 115.

3. Close; strong.

Robbers and outlaws - lurking in woods and fast places.

4. Firmly fixed; closely adhering; as, to stick fast in more; to make fast a rope.
5. Close, as sleep; deep; sound; as a fast sleep.
6. Firm in adherence; as a fast friend.

Fast and loose, variable; inconstant; as, to play fast and loose.

F'AST, adv. Firmly; immovably.

We will bind thee fast, and deliver thee into their hand. Judges 15.

F'AST, a. L. festino. The sense is to press, drive, urge, and it may be from the same root as the preceding word, with a different application.

Swift; moving rapidly; quick in motion; as a fast horse.

F'AST, adv. Swiftly; rapidly; with quick steps or progression; as, to run fast; to move fast through the water, as a ship; the work goes on fast.

F'AST, v.i.

1. To abstain from food, beyond the usual time; to omit to take the usual meals, for a time; as, to fast a day or a week.
2. To abstain from food voluntarily, for the mortification of the body or appetites, or as a token of grief, sorrow and affliction.

Thou didst fast and weep for the child. 2Sam. 12.

When ye fast, be not, as the hypocrites, of a sad countenance. Matt. 6.

3. To abstain from food partially, or from particular kinds of food; as, the Catholics fast in Lent.

F'AST, n.

1. Abstinence from food; properly a total abstinence, but it is used also for an abstinence from particular kinds of food, for a certain time.

Happy were our forefathers, who broke their fasts with herbs.

2. Voluntary abstinence from food, as a religious mortification or humiliation; either total or partial abstinence from customary food, with a view to mortify the appetites, or to express grief and affliction on account of some calamity, or to deprecate an expected evil.
3. The time of fasting, whether a day, week or longer time. An annual fast is kept in New England, usually one day in the spring.

The fast was now already past. Act. 27.

F'AST, n. That which fastens or holds.

Source: King James Dictionary