Deuteronomy 31:19-21

Great(i) 19 Now therfore write ye thys songe for you, and teache it the chyldren of Israel, and put it in theyr mouthes, that thys songe maye be my wytnesse agaynst the chyldren of Israel. 20 For I wyll bryng them into the lande, (which I sware vnto theyr fathers) that floweth wt mylke and honye, & they shall eate, and fyll them selues, and waxe fatt, and turne vnto straunge goddes, and serue them, and blaspheme me, and breake my couenaunt. 21 And then when moch myschefe and tribulacyon is come vpon them, thys songe shall answere them, as a wytnesse. For it shall not be forgotten out of the mouthes of theyr seed: for I knowe theyr imaginacyon, whych they goo about euen nowe, before I haue broughte them into the lande which I sware.