1 Timothy 1:4

neither to give heed to fables and endless genealogies, which minister questionings, rather than a dispensation of God which is in faith; so do I now.

Of all historical peoples, the Jews, more than any other, were concerned with genealogies; and coupled with this, the sequential mention of the Ten Commandments, one at a time in order, a moment later, emphatically demands that the false teaching here be understood as Jewish improvisations upon the body of Christian truth. All efforts to make this passage a refutation of second-century philosophies should be rejected.

So do I now ... These four words were supplied by the translators, an addition which was made necessary by Paul's breaking off a sentence without finishing it. The particular type of grammatical structure here is called an anacoluthon. Most scholars believe that it would have been better to supply the words "so do," making them imperative for Timothy, rather than as in the ASV.