Proper use of words Blessed or Blest

Which of the following is grammatically correct

              A life blessed by God  

                     or 

               A life blest by God 

My research just gets me more confused.

Solution 1:

For modern usage, use blessed (pronounced like "blest"). The word blest is not incorrect, it's just an archaic form.

From grammarist.com:

Blessed is the past tense and past participle of bless. Blest is an archaic form that shows up mainly in references to old, mostly poetical texts and as a poetic affectation. Elsewhere, it has been pushed out of the language. This is the case throughout the English-speaking world.

Both spellings descend from older forms in Old and Middle English, and both developed around the 14th century,1 though blessed is probably a little older. Blessed is one of a number of -ed words that gained a -t variant when the vowel sound in -ed was dropped around the 16th century.2 Blest was never more common than blessed, though, and today we remember it mainly because it appears in some great literary works of the early modern era. Shakespeare, for example, used it a few dozen times (at least in the early renderings of his plays, which were assembled by several people with different spelling preferences, and where blessed is actually about twice as common as blest). It is probably significant that in our searches for historical examples of the two forms, most instances of blest are in poetry. Blessed, meanwhile, is disproportionately common in Christian texts.

The old, two-syllable pronunciation of blessed (bless-id) survives in religious oratory and in some religious phrases, but elsewhere the word’s ending is pronounced like that of other words ending in -essed—that is, est instead of ess-id.