## He said to them ##

"Moses said to the people of Israel"

## Fix your mind on ##

AT: “Pay attention to” or “Think about” (See: [[rc://en/ta/man/translate/figs-idiom]])

## that I have witnessed to you today ##

AT: "that I am giving today as a declaration of truth to you"

## your children ##

"your children and descendants"

## this is no trivial matter for you ##

AT: "this is not a matter for you to ignore" or "the law is not just empty words" or "you must pay attention to what the law says" (See: [[rc://en/ta/man/translate/figs-litotes]])

## because it is your life ##

AT: "because you will live if you obey it"