Blake is usning the allusion of the forbiden applein the garden to Eden to symbolize anger and hate, contrasting behaviors, honestly confessing “I told my wrath, my wrath did end” and being resentful and hating “I told it not, my wrath did grow”. Stanza 1 makes the compare and contrast and sets the topic witht the last lines.

Stanza 2: “fears”, “tears”, “smiles” (hypocrite smiles) and “deceitful wiles” all are negative aspects of human behavior that are damaging, and eventually what will create a problem, in the poem, the apple.

Stanza 3: Anger was the seed that grew into the apple: what did the apple in Eden cause: the expulsion from paradise, in Blake’s poem, the end of a friendship. What it sounds like is as if it was a trap “Till it bore an apple bright;/And my fow beheld it shine,/And he knew that it was mine,” like betrayal from from the snake to Adam and Eve.

Stanza 4: Figurative or literal death “In the morning glad I’d see/My foe outstretch’d beneath the tree.”

What it tells is that negative behavior, brings negative consequences.

Blake uses a lot of allusions to religious themes (the Bible) and well, be glad you don’t have to pait together the ‘Songs of Innocence” to the “Songs of Experience” of Blake’s or something like that. Hope thins helped.