Titus 3:9 in the World English Bible
but shun foolish questionings, genealogies, strife, and disputes about the law; for they are unprofitable and vain.
Context
8 This is a faithful saying, and these things I will that thou affirm constantly, that they which have believed in God might be careful to maintain good works. These things are good and profitable unto men.
9 But avoid foolish questions, and genealogies, and contentions, and strivings about the law; for they are unprofitable and vain.
10 A man that is an heretick after the first and second admonition reject;