The Myth of Infallibility

[Drich]

maybe this will help you untie the knot of paradoxy:
11 These people must be stopped, because they are destroying whole families by teaching what they should not teach. They teach only to cheat people and make money. 12 Even one of their own prophets said, “Cretans are always liars. They are evil animals and lazy people who do nothing but eat.” 13 The words that prophet said are true. So tell those people that they are wrong. You must be strict with them. Then they will become strong in the faith,

It's called a contextual reading.

It's still a paradox, dummy.

please explain the paradox.