When working through a passage, it can be important to work through pronoun usage. Sometimes pronouns have direct referents, sometimes the referents are implied.
A familiar example is found in the first three verses of First John:
1 That whicha was from the beginning, whichb we have heard, whichc we have seen with our eyes, whichd we looked upon and have touched with our hands, concerning the word of life— 2 the life was made manifest, and we have seen it, and testify to it and proclaim to you the eternal lifef, whichf was with the Father and was made manifest to us— 3 that whiche we have seen and heard we proclaimabcde also to you, so that you too may have fellowship with us; and indeed our fellowship is with the Father and with his Son Jesus Christ. (1Jn 1.1-3, ESV)
In the above, the English words translated from relative pronouns are in bold, the pronoun referent is in bold italic text. Note use of superscript letters to align pronoun with specific referent as there are two referents in the above example.
How did I know that? Well, let’s just say that the Lexham Syntactic Greek New Testament and the Syntax Search dialog are my friends.