Romans 11:34
Who hath known? (tiv egnw). Second aorist active indicative of ginwskw, a timeless aorist, did know, does know, will know. Quotation from Isaiah 40:13. Quoted already in I Corinthians 2:16.
Counsellor (sumboulov). Old word from sun and boulh. Only here in N.T.
His (autou). Objective genitive, counsellor to him (God). Some men seem to feel competent for the job.
