Besides being born again in Christ, a healthy body and mind is a blessing we can have. Not all families experience this.
1 Corinthians 1124-26
There was an old covenant, then a new covenant. Communion was and is a big part of worshipping God. His loving instruction is we participate together in communion. We proclaim the Lord's death until he comes. There is no instruction that it's only done on a Sunday. The early church did communion each day they met.
Jesus blood gives us the right standing before God. We are righteous by what is done on the cross.
How can we know? How do we pass the test?
2 Corinthians 13:4-6
Answer: Christ Jesus is in us.
If Christ is not in us, we're in big strife. In Christ we declare his death; we are made right.
Communion is not just a ritual to be observed. We are to count our blessings one by one, and see what God has done.