'Previously' in the Bible

One of their own, Nicodemus (the man who had previously met with Jesus), asked them,

Then the neighbors and those who had previously seen him as a beggar said, "This is the man who used to sit and beg, isn't it?"

I have already warned those who sinned previously and all the rest. Although I am absent now, I am warning them as I did on my second visit: If I come back, I will not spare you,

This is what I mean: The Law that came 430 years later did not cancel the covenant that God ratified previously. The promise was never nullified.