Ignatius Loyola (1491-1556), the tireless zealot for papal authority –  he was the founder of the Society of Jesus (the Jesuits) – even wrote:

"We should always be disposed to believe that which appears to us to be white is really black, if the hierarchy of the church so decides."

The Reformation may have swept away some abuses perpetrated by the priesthood but lying was not one of them. Martin Luther, in private correspondence, argued:

"What harm would it do, if a man told a good strong lie for the sake of the good and for the Christian church ... a lie out of necessity, a useful lie, a helpful lie, such lies would not be against God, he would accept them."
– Martin Luther

(Cited by his secretary, in a letter in Max Lenz, ed., Briefwechsel Landgraf Phillips des Grossmüthigen von Hessen mit Bucer, vol. I.)

The Virgin Birth Fraud
The most colossal blunder of the Septuagint translators, the mistranslation of the original Hebrew text of Isaiah, 7.14, allowed deceitful early Christians to concoct their infamous prophecy that somehow the ancient Jewish text presaged the miraculous birth of their own godman.

The Hebrew original says:
'Hinneh ha-almah harah ve-yeldeth ben ve-karath shem-o immanuel.'

Honestly translated, the verse reads:
'Behold, the young woman has conceived — and bears a son and calls his name Immanuel.'
The Greek-speaking translators of Hebrew scripture (in 3rd century B.C. Alexandria) slipped up and translated 'almah' (young woman) into the Greek 'parthenos' (virgin). The Hebrew word for virgin would have been 'betulah.' The slip did not matter at the time, for in context, Isaiah’s prophesy – set in the 8th century BC but probably written in the 5th – had been given as reassurance to King Ahaz of Judah that his royal line would survive, despite the ongoing siege of Jerusalem by the Syrians. And it did. In other words, the prophesy had nothing to do with events in Judaea eight hundred years into the future!

Justin ‘Martyr’, a pagan Greek from Palestine, fled to Ephesus at the time of Bar Kochbar’s revolt (132 -135 AD). He joined the growing Christian community and found himself competing with the priests of Artemis, an eternally virgin goddess. Justin successfully overcame the sentiments of established Christians and had Mary, mother of Jesus, declared a virgin, citing his Greek copy of Isaiah as 'evidence' of scriptural prescience. The Greek priest who then forged the 'Gospel according to St. Matthew' went one stage further, taking the word 'harah' – in Hebrew a past or perfect tense – and switched it into a future tense to arrive at:

'Behold, a virgin shall be with child, and shall bring forth a son, and they shall call his name Emmanuel.'
(Matthew 1.23)

All this to arrive at the monstrous fiction that ancient scripture foretold of the arrival of an infant actually called Jesus!

Was Saint Paul an unabashed liar? From this verse in Romans it would appear so:

"For if the truth of God hath more abounded by my lie unto his glory, why yet am I also adjudged a sinner?" (St. Paul, Romans 3.7)

However, in context, Paul is actually censuring other Christians who say "Let us do evil, that good may come" (that is, from God's judgement). But like Paul we can "take the passage captive" to make a point.