I believe that he made his every effort for them to remember these things before his departure and not after. I don't see how this verse is implying that Paul made some sort of effort after his departure rather than before. Interesting verse though.
Is there really a connection between death and remembrance for those that live and believe?
2 Cor 4:
6For God, who said, “Let light shine out of darkness,”
a made his light shine in our hearts to give us the light of the knowledge of God’s glory displayed in the face of Christ.
7But we have this treasure in jars of clay to show that this all-surpassing power is from God and not from us.
8We are hard pressed on every side, but not crushed; perplexed, but not in despair;
9persecuted, but not abandoned; struck down, but not destroyed.
10We always carry around in our body the death of Jesus, so that the life of Jesus may also be revealed in our body.
11For we who are alive are always being given over to death for Jesus’ sake, so that his life may also be revealed in our mortal body.
12So then, death is at work in us, but life is at work in you.
13It is written: “I believed; therefore I have spoken.”
b Since we have that same spirit of
c faith, we also believe and therefore speak,
14because we know that the one who raised the Lord Jesus from the dead will also raise us with Jesus and present us with you to himself.
15All this is for your benefit, so that the grace that is reaching more and more people may cause thanksgiving to overflow to the glory of God.
What is the difference between what Paul says and what Peter said?
Paul seems to say that those believers will remember what they were taught because the Apostles will indwell them when they are caught up with them (presented with them). He makes it clear that their death will benefit those that believe.
Q. How does Paul's (Apostles') death benefit their students?