The priority of the very words of Jesus was recognized even by the Paulinist author of 1 Timothy

If any man ... consent not to ... the words of our Lord Jesus Christ, and to the doctrine which is according to godliness; He is proud, knowing nothing ... from such withdraw thyself.

-- 1 Timothy 6:3ff.

And every one that heareth these sayings of mine, and doeth them not, shall be likened unto a foolish man, which built his house upon the sand:

-- Matthew 7:26