Keuchenius, Petrus, a learned Dutch theologian, was born at Bois-le-Duc August 22, 1654, and studied at Leyden, and Utrecht. He was successively minister at Alem, Tiel, and Armheim. He died March 27,1689. He wrote Annotata in omnes N.T. libros, the second and only complete edition of which, superintended by Alberti, appeared at Leyden in 1755. " The author's aim in these annotations is to throw light on the N. Test. by determining the sense in which words and phrases were used at the time it was written, and among those with whom its writers were familiar. For this purpose he compares the language of the N. Test. with that of the Septuagint, and calls in aid from the Chaldee and Syriac versions. His notes are characterized by sound learning and. great good sense. Alberti commends in strong terms his erudition, his candor, solidity, and impartiality."-Kitto's Biblical Cyclopaedia, ii, 729.