The phrase "That which was from the beginning" refers to Jesus, who existed before everything was made. You could translate this as "We are writing to you about the one who existed before the creation of all things."
## the beginning ##
"the beginning of all things" or "the creation of the world"
## which we have heard ##
The phrase "which we have heard" refers to what Jesus taught them. It can be translated as "We heard him teach."
## we ##
<b>we</b>- In verses 1 and 2, the word "we" refers to John and those who knew Jesus when he was on this earth, but it does not include the people John was writing to. (See: [[rc://en/ta/man/translate/figs-exclusive]])
## which we have seen with our eyes, which we have contemplated ##
"We ourselves have seen him."
## and our hands handled ##
"we have touched him with our hands"
## the Word of life ##
This refers to Jesus. "He is the one who causes people to live forever."
## the life was manifested ##
This refers to Jesus' coming to earth. It can be translated as "God sent him to the earth" (See: [[rc://en/ta/man/translate/figs-activepassive]])
## and we have seen ##
"and we saw him"
## and bear witness ##
"and are telling you about him"
## the eternal life ##
This phrase also refers to Jesus, who causes us to live forever. It can be translated as "that he causes us to live forever."