Matthew 26:26 And as they were eating, Jesus took bread, and blessed it, and brake it, and gave it to the disciples, and said, Take, eat; this is my body.
We say a blessing before each meal. Why? We say “bless you” or “God bless” when a person sneezes. Why? “Well bless your little ol’ heart.” What does that mean? There are many ways we use the word bless and blessing to express intended good will and even sarcasm. Do any of those expressions bless the Lord?
I dare say when we take communion we think about the sacrifice the Lord made for us, the body given and the blood shed for us. Do we think about the blessing Jesus bestowed on the bread before giving us the bread of life?
John 6:35 And Jesus said unto them, I am the bread of life: he that cometh to me shall never hunger; and he that believeth on me shall never thirst.
Just as God blessed His creation, Jesus blesses His followers by yielding to their needs. He did so without being asked.
Bless the Lord has to be in yielding to His needs and those needs He expressed where the same as the Father in creation, to love and be loved. Jesus is gathering to Himself a bride to love and that loves Him. Our part to bless the Lord is to meet His need.
Preach the gospel, make disciples and love one another.
Our ability to do that is because Jesus blessed the bread and we took and ate of the bread by faith.
Galatians 2:20 I am crucified with Christ: nevertheless I live; yet not I, but Christ liveth in me: and the life which I now live in the flesh I live by the faith of the Son of God, who loved me, and gave himself for me.