"When God ye Fatal Dart He Sends"

When I plug Mary Brown's epitaph into Google, the only hits are references to her gravestone in Providence's North Burial Ground. That doesn't necessarily mean that this is an original verse, composed especially for Mary Brown, but it may be. It's certainly clumsy enough.

Here lies Inter'd ye

Body of Mary Brown

Widow & Relict of James

Brown, Decd. August ye 18th

1736. in ye 66th Year of her Age

Old Age being come her race here ends

When God ye fatal Dart he sends.

I always thought that "widow" and "relict" were synonyms, but apparently, you can be both a widow and a relict at the same time.

Also, isn't it usually Death who sends the dart, not God?