Havdalah is Hebrew for separation. It refers to separating the sacred from the ordinary, the sacred being the Sabbath day and the ordinary being the other days of the week.

The Havdalah service formally ends the Sabbath day and ushers in the regular week when we are once again engaged in our worldly concerns. We live in a world of opposites.

At the end of the Sabbath we are acutely aware of the tensions between these worlds, being the spiritual and the carnal worlds.

James 1:[27] Pure religion and undefiled before God and the Father is this, To visit the fatherless and widows in their affliction, and to keep himself unspotted from the world.

2Cor.6[14] Be ye not unequally yoked together with unbelievers: for what fellowship hath righteousness with unrighteousness? and what communion hath light with darkness?

[16] And what agreement hath the temple of God with idols? for ye are the temple of the living God; as God hath said, I will dwell in them, and walk in them; and I will be their God, and they shall be my people.

[17] Wherefore come out from among them, and be ye separate, saith the Lord, and touch not the unclean thing; and I will receive you,[18] And will be a Father unto you, and ye shall be my sons and daughters, saith the Lord Almighty.

1Cor.10[20] But I say, that the things which the Gentiles sacrifice, they sacrifice to devils, and not to God: and I would not that ye should have fellowship with devils.
[21] Ye cannot drink the cup of the Lord, and the cup of devils: ye cannot be partakers of the Lord's table, and of the table of devils.
[22] Do we provoke the Lord to jealousy? are we stronger than he?
[23] All things are lawful for me, but all things are not expedient: all things are lawful for me, but all things edify not.

Heb.7[26] For such an high priest became us, who is holy, harmless, undefiled, separate from sinners, and made higher than the heavens;

Eph.5 [11] And have no fellowship with the unfruitful works of darkness, but rather reprove them

[12] For it is a shame even to speak of those things which are done of them in secret.

[10] My son, if sinners entice thee, consent thou not.
[11] If they say, Come with us, let us lay wait for blood, let us lurk privily for the innocent without cause:
[12] Let us swallow them up alive as the grave; and whole, as those that go down into the pit:
[13] We shall find all precious substance, we shall fill our houses with spoil:
[14] Cast in thy lot among us; let us all have one purse:
[15] My son, walk not thou in the way with them; refrain thy foot from their path:
[16] For their feet run to evil, and make haste to shed blood.
[17] Surely in vain the net is spread in the sight of any bird.
[18] And they lay wait for their own blood; they lurk privily for their own lives.
[19] So are the ways of every one that is greedy of gain; which taketh away the life of the owners thereof

21 And the children of Israel, which were come again out of captivity, and all such as had separated themselves unto them from the filthiness of the heathen of the land, to seek the LORD God of Israel, did eat,
22 And kept the feast of unleavened bread seven days with joy: for the LORD had made them joyful, and turned the heart of the king of Assyria unto them, to strengthen their hands in the work of the house of God, the God of Israel.

¶ Then I proclaimed a fast there, at the river of Ahava, that we might afflict ourselves before our God, to seek of him a right way for us, and for our little ones, and for all our substance.
22 For I was ashamed to require of the king a band of soldiers and horsemen to help us against the enemy in the way: because we had spoken unto the king, saying, The hand of our God [is] upon all them for good that seek him; but his power and his wrath [is] against all them that forsake him.
23 So we fasted and besought our God for this: and he was intreated of us.

And Ezra the priest stood up, and said unto them, Ye have transgressed, and have taken strange wives, to increase the trespass of Israel.
11 Now therefore make confession unto the LORD God of your fathers, and do his pleasure: and separate yourselves from the people of the land, and from the strange wives.

Col.2:[1] For I would that ye knew what great conflict I have for you, and for them at Laodicea, and for as many as have not seen my face in the flesh;
[2] That their hearts might be comforted, being knit together in love, and unto all riches of the full assurance of understanding, to the acknowledgement of the mystery of God, and of the Father, and of Christ;
[3] In whom are hid all the treasures of wisdom and knowledge.
[4] And this I say, lest any man should beguile you with enticing words.
[5] For though I be absent in the flesh, yet am I with you in the spirit, joying and beholding your order, and the stedfastness of your faith in Christ.
[6] As ye have therefore received Christ Jesus the Lord, so walk ye in him:
[7] Rooted and built up in him, and stablished in the faith, as ye have been taught, abounding therein with thanksgiving.
[8] Beware lest any man spoil you through philosophy and vain deceit, after the tradition of men, after the rudiments of the world, and not after Christ.
[9] For in him dwelleth all the fulness of the Godhead bodily.
[10] And ye are complete in him, which is the head of all principality and power:
[11] In whom also ye are circumcised with the circumcision made without hands, in putting off the body of the sins of the flesh by the circumcision of Christ:
[12] Buried with him in baptism, wherein also ye are risen with him through the faith of the operation of God, who hath raised him from the dead.
[13] And you, being dead in your sins and the uncircumcision of your flesh, hath he quickened together with him, having forgiven you all trespasses;
[14] Blotting out the handwriting of ordinances that was against us, which was contrary to us, and took it out of the way, nailing it to his cross;
[15] And having spoiled principalities and powers, he made a shew of them openly, triumphing over them in it.
[16] Let no man therefore judge you in meat, or in drink, or in respect of an holyday, or of the new moon, or of the sabbath days:
[17] Which are a shadow of things to come; but the body is of Christ.
[18] Let no man beguile you of your reward in a voluntary humility and worshipping of angels, intruding into those things which he hath not seen, vainly puffed up by his fleshly mind,
[19] And not holding the Head, from which all the body by joints and bands having nourishment ministered, and knit together, increaseth with the increase of God.

[20] Wherefore if ye be dead with Christ from the rudiments of the world, why, as though living in the world, are ye subject to ordinances,
[21] (Touch not; taste not; handle not;
[22] Which all are to perish with the using;) after the commandments and doctrines of men?
[23] Which things have indeed a shew of wisdom in will worship, and humility, and neglecting of the body; not in any honour to the satisfying of the flesh.

2Tim.2[17] And their word will eat as doth a canker: of whom is Hymenaeus and Philetus;[18] Who concerning the truth have erred, saying that the resurrection is past already; and overthrow the faith of some.