Priest signing at vatican mass;
It's obvious the person who made that video knows little to no Latin, not only because of their incorrect "Catholic Church praising Lucifer" claim but also because the translations they offer of the applicable Latin phrases aren't very good and were probably done by some kind of low quality automated translation.
This is not "praising Lucifer". This is praising
Jesus. While in modern English parlance "lucifer" is largely used only in reference to Satan, it had more meanings in Latin. The important one in this case is that "lucifer" in Latin is a term that refers to the morning star--that is, the planet Venus.
Any Latin dictionary will confirm this, that lucifer means morning star. Now, the Bible
explicitly refers to Jesus as the morning star in Revelation 22:16, and this is drawing upon that.
Now, lucifer in Latin does have some other meanings. Pertinent for our purposes is its usage to refer to the devil, which developed later on through an interpretation that Isaiah 14:12 was referring to the devil (the Latin translated its mention of the morning star as lucifer). While some have disputed the idea this referred in any way to the devil, at any rate it eventually gave rise to a new meaning of lucifer as a term for the devil, and that is the one that is dominant in English. However, in Latin, the term lucifer continued to also be used as a term for morning star, just as it was before.
That is what is being used here; the usage of lucifer in this Latin prayer is not in reference to the devil, but the morning star (Jesus). What the video shows is from the Exsultet/Exultet, a prayer used in Easter vigil masses. Here is the Latin of the applicable portion:
Flammas eius lúcifer matutínus invéniat:
ille, inquam, lúcifer, qui nescit occásum.
Christus Fílius tuus,
qui, regréssus ab ínferis, humáno géneri serénus illúxit,
et tecum vivit et regnat in sæcula sæculórum.
The version of this used in English masses is this:
May this flame be found still burning by the Morning Star:
the one Morning Star who never sets,
Christ your Son,
who, coming back from death's domain, has shed his peaceful light on humanity,
and lives and reigns for ever and ever.
Probably due to trying to make it sound good in English the translation is a little loose, but the general meaning of the lines is retained. One notices the obvious fact that lucifer is rendered as morning star... because that's what it means.
Almost as if to make absolutely sure there wouldn't be misunderstanding, the first line even applied the adjective matutinus (morning) to lucifer. This is somewhat redundant because lucifer by itself means "morning star", but it makes it even more clear that's the meaning. And then the third line, Christus Filius tuus/Christ your Son (the prayer is addressed to God and therefore it is simply saying Jesus is God's son), even more clearly identifies that the morning star being referred to is Jesus, again because this is invoking Revelation's reference to Jesus being the morning star. Even if someone missed the fact it's referencing Revelation 22:16, any knowledge of Latin makes it clear that this is not in any way a reference to Lucifer as a devil.
it should be noted that this prayer is also found in some Anglican, Lutheran, and Methodist churches (Wikipedia offers some examples
here). They also use morning star in English:
Anglican:
Holy Father, accept our evening sacrifice, the offering of this candle in your honor. May it shine continually to drive away all darkness. May
Christ, the Morning Star who knows no setting, find it ever burning—he who gives his light to all creation, and who lives and reigns for ever and ever."
Lutheran:
Holy Father, Accept now the evening sacrifices of our thanksgiving and praise. Let
Christ, the true light and morning star, shine in our hearts, He who gives light to all creation, Who lives and reigns with You and the Holy Spirit, One God, now and forever.
Methodist:
May
the Morning Star, which never sets, find this flame still burning.
Christ, that Morning Star, who came back from the dead, and shed his peaceful light on all creation, your Son who lives and reigns for ever and ever."
So the claim made by your video that they were praising Lucifer (the devil) is simply wrong. It was praising
Jesus and referring to Jesus as the morning star, which the Bible itself does.
