וַיָּ֨טֶל שָׁא֧וּל אֶֽת־הַחֲנִ֛ית עָלָ֖יו לְהַכֹּת֑וֹ וַיֵּ֙דַע֙ יְה֣וֹנָתָ֔ן כִּֽי־כָ֥לָה הִ֛יא מֵעִ֥ם אָבִ֖יו לְהָמִ֥ית אֶת־דָּוִֽד׃ (ס)
And Saul cast his spear at him to smite him; whereby Jonathan knew that it was determined of his father to put David to death.
Read the Targum (classical Aramaic translation) of I Samuel 20:33: Targum Onkelos and other Aramaic renditions, free online, no signup.