A mediator is a person who helps negotiate a peaceful settlement by two parties who do not agree with each other. It is here used for Jesus who helps sinners to enter into a peaceful relationship with God.
## gave himself ##
"died willingly"
## as a ransom ##
<b>as a ransom <b>- "as a price of freedom" or "as a payment to obtain freedom"
## the testimony at the right time ##
<b>the testimony at the right time <b>- "this is his testimony at the right time" or "the testimony during these times"
## For this purpose ##
"For this" or "For this reason" or "For this testimony"
## was made a herald ##
<b>was made a herald <b>- "was appointed a preacher" or "was appointed by Christ to be a preacher"
## I speak truth ##
<b>I speak truth <b>- "I am saying the truth" or "I am telling the truth"
## I do not lie ##
"I am not lying"
## in faith and truth ##
<b>in faith and truth <b>- "about faith and truth" or "with faith and truth"