I wasn't aware being a true Christian involved persecution from the flock. You'll find no story of Jesus turning an individual away from him or telling a parable of people leaving him. And likewise God has no given you the power or authority to determine you're own godliness or that of others, that judgment lies entirely with him.
You're fond of quoting the Bible, trying this one on for size. Matthew 7:1-6
1 “Judge not, that you be not judged. 2 For with what judgment you judge, you will be judged; and with the measure you use, it will be measured back to you. 3 And why do you look at the speck in your brother’s eye, but do not consider the plank in your own eye? 4 Or how can you say to your brother, ‘Let me remove the speck from your eye’; and look, a plank is in your own eye? 5 Hypocrite! First remove the plank from your own eye, and then you will see clearly to remove the speck from your brother’s eye.
6 “Do not give what is holy to the dogs; nor cast your pearls before swine, lest they trample them under their feet, and turn and tear you in pieces.
Also you're wise as serpents quotation could use a little context.
Matthew 10: 16-26
16 “Behold, I send you out as sheep in the midst of wolves. Therefore be wise as serpents and harmless as doves. 17 But beware of men, for they will deliver you up to councils and scourge you in their synagogues. 18 You will be brought before governors and kings for My sake, as a testimony to them and to the Gentiles. 19 But when they deliver you up, do not worry about how or what you should speak. For it will be given to you in that hour what you should speak; 20 for it is not you who speak, but the Spirit of your Father who speaks in you.
21 “Now brother will deliver up brother to death, and a father his child; and children will rise up against parents and cause them to be put to death. 22 And you will be hated by all for My name’s sake. But he who endures to the end will be saved. 23 When they persecute you in this city, flee to another. For assuredly, I say to you, you will not have gone through the cities of Israel before the Son of Man comes.
24 “A disciple is not above his teacher, nor a servant above his master. 25 It is enough for a disciple that he be like his teacher, and a servant like his master. If they have called the master of the house Beelzebub,[d] how much more will they call those of his household! 26 Therefore do not fear them. For there is nothing covered that will not be revealed, and hidden that will not be known.