This is an item from Anton Moker's Decalogus metricus et paraenetica disticha, published in 1573. You can see the book at GoogleBooks.
Deo Dante
Dante deo, livor nihil efficit ullius hostis;
Irritus et labor est, non bona dante deo.
The vocabulary is keyed to the DCC Latin Vocabulary list. There are two words in this poem that are not on the DCC list:
irritus, -a, -um: useless, without effect, in vain
līvor (līvōris, m.): bluish color, envy, spite
bonus -a -um: good
deus -ī m.; dea -ae f. god; goddess
dō dare dedī datum: give
efficiō -ficere -fēcī -fectum: bring about, complete; render (+ ut + subj.)
et: and
hostis -is m./f.: stranger, enemy
labor -ōris m.: toil, exertion
nihil, nīl: nothing; not at all
nōn: not
sum, esse, fuī: be, exist
ūllus -a -um: any, anyone