After me there is no one, besides you, my most beloved disciple, to keep watch over this work with greater zeal. I leave you as my representative in the work of God. Labor.
Then he presents an example of how to labor, listing his own labors. Or else it may be understood thus: everything I have prescribed for you is my final instruction to you. My end has already come.
Receive what has been said as a final testament. Where anything is lacking, seek guidance in my example.
"I am being poured out," σπενδομαι. I am already being slain as a sacrifice, "or, I am already offering myself as a sacrifice to Christ" (Oecumenius).
"I stand at the very end of my struggles. The Apostle called his being put to death a sacrificial slaughter, expressing it by the word σπενδομαι, because blood was being poured out for piety. σπονδη means a sacrificial libation" (Theodoret).
"He did not call the death being prepared for him a sacrifice, θυσιαν, but a libation, σπονδην, speaking more forcefully and more sacredly. For in a sacrifice, usually only some part was offered to God as a burnt offering.
But a libation was wholly offered to Him. He commands his disciples to do the same when he says: present your bodies as a living sacrifice (Rom 12:1).
For one who is slain for Christ offers himself in sacrifice in a priestly manner. Or by σπενδομαι he means καταλυω πολεμον: I am ending my war with all.
I will no longer go out to battle, nor will there be any battle against me. I am already coming to an end" (Oecumenius).
"And the time of my departure is at hand." Departure, αναλυσεως, means release, as he also wrote to the Philippians that he desired to depart and be with Christ (Phil 1:23).