He was hidden for 3 months before an "ark of bulrushes" was built for him
It was Noah's faith that had him believe God's Word and build the ark before 
the ... could not longer hide him, she took for him an ark of bulrushes and daubed 
it... [DOC] [TLE] ARK OF THE COVENANT - JewishEncyclopedia.com [PAR] Moses is made to say that he constructed the Ark before going upon Mount Sinai 
to ... instead of carrying it on to Zion, and here it stayed three months (II Sam.