Prayers of the People
"Give thanks to the Lord..."
"Remember the marvels he has done"
In the OT generally, and in the Psalms in particular, this pairing of admonitions
is very common.
We give thanks, because we remember.
We remember in order to give thanks
We thank God for what God has done in the past.
We can thank God for the future because God will continue to do what is good.
Israel specifically gave thanks for the Exodus,
and saw in it the pattern for every other kind of freedom God might choose to give them.
Christians, and Paul in particular, also saw in this image a picture of what Jesus did for us in his dying and rising.
Instead of Egypt, Jesus led us out of slavery to sin,
led us through death into new life.
Our Easter hymns reflect this:
"Through the red sea, brought at last, Alleluia!"
And it is reflected in our understanding of baptism as a going down into the waters of death - and being raise to new life with Christ.