matares
-you will kill
The word matares is the future subjunctive form of matar in the second person singular. There are other translations for this conjugation.
See the full matar conjugation

matar

Y no se dejará ver levadura contigo en todo tu término por siete días; y de la carne que matares á la tarde del primer día, no quedará hasta la mañana.
And there shall be no leaven seen with thee in all thy borders seven days; neither shall any of the flesh, which thou sacrificedst at even on the first day, be left over night until the morning.—
Want to Learn Spanish?
Spanish learning for everyone. For free.
SpanishDict Premium
Have you tried it yet? Here's what's included:
Cheat sheets
No ads
Learn offline on iOS
Fun phrasebooks
Learn Spanish faster
Support SpanishDict