וַיֹּ֤אמֶר שָׁאוּל֙ לַֽאֲחִיָּ֔ה הַגִּ֖ישָׁה אֲר֣וֹן הָאֱלֹהִ֑ים כִּֽי־הָיָ֞ה אֲר֧וֹן הָאֱלֹהִ֛ים בַּיּ֥וֹם הַה֖וּא וּבְנֵ֥י יִשְׂרָאֵֽל׃
Rashi on I Samuel
For the Ark of God was there on that day. This verse is missing one word; [what it means is,] "because the Ark of God was there [שָׁם] on that day."