I believe it is important that every person ought to use the Bible and the Holy Spirit to come to their own conclusions on these matters. Examine yourselves, whether ye be in the faith; prove your own selves. (2 Corinthians 13:5) For if we would judge ourselves, we should not be judged. (1 Corinthians 11:31) However, I worry that many Christians are falsely under the assumption that their salvation is solidified but Jesus tells us: "Not every one that saith unto me, Lord, Lord, shall enter into the kingdom of heaven; but he that doeth the will of my Father which is in heaven.
Many will say to me in that day, Lord, Lord, have we not prophesied in thy name? and in thy name have cast out devils? and in thy name done many wonderful works?
And then will I profess unto them, I never knew you: depart from me, ye that work iniquity." - (Matthew 7:21-23) THAT IS NOT WHAT YOU WANT TO HEAR FROM JESUS
IN JEREMIAH 10:2-6 GOD WARNS US OF X-MAS TREES:
"Thus saith the Lord, Learn not the way of the heathen, and be not dismayed at the signs of heaven; for the heathen are dismayed at them. For the customs of the people are vain: for one cutteth a tree out of the forest, the work of the hands of the workman, with the axe. They deck it with silver and with gold; they fasten it with nails and with hammers, that it move not. They are upright as the palm tree, but speak not: they must needs be borne, because they cannot go. Be not afraid of them; for they cannot do evil, neither also is it in them to do good. Forasmuch as there is none like unto thee, O Lord; thou art great, and thy name is great in might."
IN EZEKIEL8:13-18 GOD WARNS US OF THE JUDGEMENT HE WILL CAST ON THOSE WHO ARE CELEBRATING THE PAGAN WORSHIP OF ISHTAR AND TAMMUZ (EASTER):
He said also unto me, Turn thee yet again, and thou shalt see greater abominations that they do. Then he brought me to the door of the gate of the Lord's house which was toward the north; and, behold, there sat women weeping for Tammuz.
Then said he unto me, Hast thou seen this, O son of man? turn thee yet again, and thou shalt see greater abominations than these. And he brought me into the inner court of the Lord's house, and, behold, at the door of the temple of the Lord, between the porch and the altar, were about five and twenty men, with their backs toward the temple of the Lord, and their faces toward the east; and they worshipped the sun toward the east.
THIS IS CLEARLY WARNING US OF THE DANGERS OF CELEBRATING THESE ANCIENT PAGAN RITUALS.
Here we see the "Weeping For Tammuz" (Lent) and the mention of a "sunrise service"
Amos 5:21 King James Version (KJV)
21 I hate, I despise your feast days
Deuteronomy 18:9-14 King James Version (KJV)
9 When thou art come into the land which the Lord thy God giveth thee, thou shalt not learn to do after the abominations of those nations.
10 There shall not be found among you any one that maketh his son or his daughter to pass through the fire, or that useth divination, or an observer of times, or an enchanter, or a witch
11 Or a charmer, or a consulter with familiar spirits, or a wizard, or a necromancer..
12 For all that do these things are an abomination unto the Lord: and because of these abominations the Lord thy God doth drive them out from before thee.
13 Thou shalt be perfect with the Lord thy God.
14 For these nations, which thou shalt possess, hearkened unto observers of times, and unto diviners: but as for thee, the Lord thy God hath not suffered thee so to do.
Deuteronomy 12:28-32 King James Version (KJV)
28 Observe and hear all these words which I command thee, that it may go well with thee, and with thy children after thee for ever, when thou doest that which is good and right in the sight of the Lord thy God.
29 When the Lord thy God shall cut off the nations from before thee, whither thou goest to possess them, and thou succeedest them, and dwellest in their land;
30 Take heed to thyself that thou be not snared by following them, after that they be destroyed from before thee; and that thou enquire not after their gods, saying, How did these nations serve their gods? even so will I do likewise.
31 Thou shalt not do so unto the Lord thy God: for every abomination to the Lord, which he hateth, have they done unto their gods; for even their sons and their daughters they have burnt in the fire to their gods.
32 What thing soever I command you, observe to do it: thou shalt not add thereto, nor diminish from it.
1 Corinthians 10:15-22 King James Version (KJV)
15 I speak as to wise men; judge ye what I say.
16 The cup of blessing which we bless, is it not the communion of the blood of Christ? The bread which we break, is it not the communion of the body of Christ?
17 For we being many are one bread, and one body: for we are all partakers of that one bread.
18 Behold Israel after the flesh: are not they which eat of the sacrifices partakers of the altar?
19 What say I then? that the idol is any thing, or that which is offered in sacrifice to idols is any thing?
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?
Isaiah 1:11-16 King James Version (KJV)
11 To what purpose is the multitude of your sacrifices unto me? saith the Lord: I am full of the burnt offerings of rams, and the fat of fed beasts; and I delight not in the blood of bullocks, or of lambs, or of he goats.
12 When ye come to appear before me, who hath required this at your hand, to tread my courts?
13 Bring no more vain oblations; incense is an abomination unto me; the new moons and sabbaths, the calling of assemblies, I cannot away with; it is iniquity, even the solemn meeting.
14 Your new moons and your appointed feasts my soul hateth: they are a trouble unto me; I am weary to bear them.
15 And when ye spread forth your hands, I will hide mine eyes from you: yea, when ye make many prayers, I will not hear: your hands are full of blood.
16 Wash you, make you clean; put away the evil of your doings from before mine eyes; cease to do evil;