The similarity of these to the Biblical account is not to be attributed to borrowing from the latter, but simply that it, as they, are both the mythological expressions of the same natural phenomenon.

In Norse mythology, Freya is the rainbow goddess.

She wears the bow as a necklace or girdle.

It was hammered out for her by four dwarfs, the four winds from the cardinal points, and Odin seeks to get it from her.

Schwartz, _Ursprung der Mythologie_, S.117.] As goddess of the fertilizing showers, of growth and life, it is easily seen how Ixchel came to be the deity both of women in childbirth and of the medical art, a Juno Sospita as well as a Juno Lucina.
The statement is also significant, that the Bacabs were supposed to be the victims of Ah-puchah, the Despoiler or Destroyer,[1] though the precise import of that character in the mythical drama is left uncertain.[2] [Footnote 1: _Eopuco_ I take to be from the verb _puch_ or _puk_, to melt, to dissolve, to shell corn from the cob, to spoil; hence _puk_, spoiled, rotten, _podrida_, and possibly _ppuch_, to flog, to beat.