Christians prayed Eastward in worship on Sunday

Others, again, certainly with more information and greater verisimilitude, believe that the sun is our god. We shall be counted Persians perhaps, though we do not worship the orb of day painted on a piece of linen cloth, having himself everywhere in his own disk. The idea no doubt has originated from our being known to turn to the east in prayer. But you, many of you, also under pretence sometimes of worshipping the heavenly bodies, move your lips in the direction of the sunrise. In the same way, if we devote Sun-day to rejoicing, from a far different reason than Sun-worship, we have some resemblance to those of you who devote the day of Saturn to ease and luxury, though they too go far away from Jewish ways, of which indeed they are ignorant.

Tertullian
Apology
Chapter XVI

Christians venerated the Christ in worship to Christ as God

Then, if any of you think we render superstitious adoration to the cross, in that adoration he is sharer with us. If you offer homage to a piece of wood at all, it matters little what it is like when the substance is the same: it is of no consequence the form, if you have the very body of the god.  And yet how far does the Athenian Pallas differ from the stock of the cross, or the Pharian Ceres as she is put up uncarved to sale, a mere rough stake and piece of shapeless wood? Every stake fixed in an upright position is a portion of the cross; we render our adoration, if you will have it so, to a god entire and complete.

Tertullian
Apology
Chapter XVI

Christians believe killing the fetus is murder

In our case, murder being once for all forbidden, we may not destroy even the fetus in the womb, while as yet the human being derives blood from other parts of the body for its sustenance. To hinder a birth is merely a speedier man-killing; nor does it matter whether you take away a life that is born, or destroy one that is coming to the birth. That is a man which is going to be one; you have the fruit already in its seed.

Tertullian
Apology
Chapter IX

Christ’s divinity was clearly shown during Tiberius reign

To say a word about the origin of laws of the kind to which we now refer, there was an old decree that no god should be consecrated by the emperor till first approved by the senate. Marcus Æmilius had experience of this in reference to his god Alburnus.  And this, too, makes for our case, that among you divinity is allotted at the judgment of human beings. Unless gods give satisfaction to men, there will be no deification for them: the god will have to propitiate the man. Tiberius accordingly, in whose days the Christian name made its entry into the world, having himself received intelligence from Palestine of events which had clearly shown the truth of Christ’s divinity, brought the matter before the senate, with his own decision in favour of Christ.  The senate, because it had not given the approval itself, rejected his proposal. Cæsar held to his opinion, threatening wrath against all accusers of the Christians. Consult your histories; you will there find that Nero was the first who assailed with the imperial sword the Christian sect, making progress then especially at Rome.  But

Tertullian
Apology
Chapter V

Christians sang hymns to Christ and God in morning services

For the younger Pliny, when he was ruler of a province, having condemned some Christians to death, and driven some from their steadfastness, being still annoyed by their great numbers, at last sought the advice of Trajan, the reigning emperor, as to what he was to do with the rest, explaining to his master that, except an obstinate disinclination to offer sacrifices, he found in the religious services nothing but meetings at early morning for singing hymns to Christ and God, and sealing home their way of life by a united pledge to be faithful to their religion, forbidding murder, adultery, dishonesty, and other crimes. Upon this Trajan wrote back that Christians were by no means to be sought after; but if they were brought before him, they should be punished.

Tertullian
Apology
Chapter I