Passage
I speak the things which I have seen with [my] Father: and ye also do the things which ye heard from [your] father.
I speak the things which I have seen with [my] Father: and ye also do the things which ye heard from [your] father.
John 8:36 If therefore the Son shall make you free, ye shall be free indeed.
John 8:37 I know that ye are Abraham`s seed: yet ye seek to kill me, because my word hath not free course in you.
John 8:38 I speak the things which I have seen with [my] Father: and ye also do the things which ye heard from [your] father.
John 8:39 They answered and said unto him, Our father is Abraham. Jesus saith unto them, If ye were Abraham`s children, ye would do the works of Abraham.
John 8:40 But now ye seek to kill me, a man that hath told you the truth, which I heard from God: this did not Abraham.
The verse centers on "speak", "things", "seen", "father", and "heard". It is saying that the verse draws attention to "speak" and "things", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 37's "I know that ye are Abraham s..." into verse 39's "They answered and said unto him Our...", so "speak" and "things" belong inside that flow. In John context, the local focus is the identity of Jesus, new birth, eternal life, and belief and unbelief.
A plain takeaway is to answer the verse's own emphasis on "speak" and "things" with trust shaped by these words, not by a vague optimism outside the passage.