The Catholic Postil, That Is a Lay Out of Gospels for Every Week and Feast of the Entire Year (modern Lithuanian: Postila katolicka, tai esti išguldymas evangelijų kiekvienos nedėlios ir šventės per visus metus, original Lithuanian: Postilla catholicka, tái est Ižguldimas ewangeliu kiekwienos nedelos ir szwętes per wissús metús) was a collection of Roman Catholic sermons and Bible commentaries (postil) by Jakub Wujek translated from Polish to Lithuanian by Mikalojus Daukša and first published in 1599. It was one of the first Lithuanian-language texts published in the Grand Duchy of Lithuania. The work is valued by researchers for the purity of the Lithuanian language and for its Polish dedication that defended the use of the Lithuanian language in public life. The 646-page postil remained