The first occurrence
Make an ark of gopher wood; with rooms you shall make the ark, and shall pitch it within and without with pitch. Gen 6:14
The primitive root
Strong’s H8392, tebah, a concrete noun meaning, “ark,” of unknown derivation. The 3-letter root of the noun is tav + bet + hey.
tav ת = crossed sticks, thus mark, sign, signal, monument
bet ב = the house, thus house, household, family, in, within
hey ה = man w/ raised arms, thus look, reveal, wonder, worship, breath
The story: The cross (tav) within (bet) the man who worships (hey). The ark was the means of salvation for Noah, and for Moses (the same word is used for the basket of reeds made by Moses’ mother). For us, the cross within, that is, Yeshua received in the heart, is our means of salvation. Thousands of years before the life of Yeshua on earth, in the world that perished, the Hebrew was preaching the Gospel of grace through faith!
Tebah is only used for Noah’s ark, and Moses’ basket of reeds. It occurs no where else in Hebrew Scripture, and is not the same word used for the ark of the covenant within the tabernacle.