וַהֲקִמֹתִי אֶת בְּרִיתִי אִתָּךְ וּבָאתָ אֶל הַתֵּבָה אַתָּה וּבָנֶיךָ וְאִשְׁתְּךָ וגו' (ו, יח)
And I will uphold My covenant with you, and you will come to the ark, you and your sons and your wife... (6:18)
The Magid of Mezeritch zy"a (quoted in Sefer Toras Hamagid in the name of Sefer Ginzei Yosef on Parshas Ki Savo) states that this verse contains a hint that when one davens, he should have in mind that his entire life, as well as the lives of his wife and children, depends on the tefillah he is saying. He translates the word "teiva" to mean "words". Thus, the pasuk is saying that one should "come to the words" of davening by having in mind that "you and your children and your wife" are dependent upon it.