OET interlinear EXO 13:5

uW Translation Notes:

וְ⁠הָיָ֣ה כִֽי־יְבִֽיאֲ⁠ךָ֣ יְהוָ֡ה אֶל־אֶ֣רֶץ & וְ⁠עָבַדְתָּ֛ אֶת־הָ⁠עֲבֹדָ֥ה הַ⁠זֹּ֖את בַּ⁠חֹ֥דֶשׁ הַ⁠זֶּֽה

and=it_was when he,will_bring_you YHWH to/towards earth/land & (Some words not found in UHB: and=it_was when he,will_bring_you YHWH to/towards earth/land of,the_Canaanite[s] and,the,Hittite[s] and,the,Amorite[s] and,the,Hivite[s] and,the,Jebusite[s] which/who swore to,ancestors_of,your to,give to/for=you(fs) earth/land flowing_of milk and,honey and,you_will_serve DOM the,service (the),this in,month (the),this )

When the Israelites live in Canaan, they must celebrate the Passover on this day each year. See how you translated a similar phrase in Exodus 12:25.

Note 1 topic: figures-of-speech / metonymy

לַ⁠אֲבֹתֶ֨י⁠ךָ֙

to,ancestors_of,your

Here, fathers means “ancestors.” Alternate translation: [to your ancestors]

אֶ֛רֶץ זָבַ֥ת חָלָ֖ב וּ⁠דְבָ֑שׁ

earth/land flowing_of milk and,honey

The same description occurs in Exodus 3:8. See how you translated it there and in the several notes for it.