Matthew 26:30-34: in context

On the way to the Mount of Olives, Jesus tells his disciples that they will all fall away that night, for it is written that the shepherd will be struck and the sheep scattered. But he adds a word of grace: after I am raised up, I will go before you into Galilee. Peter, however, cannot accept that he would fall. Even if all fall away because of you, he declares, I will never fall away. And Jesus answers him: this very night, before the rooster crows, you will deny me three times. Peter's confidence in his own faithfulness preceded his fall.

Peter's declaration, I will never fall away, is a study in the danger of self-confidence. He was sincere; he genuinely believed in his own loyalty, was sure he would stand even if everyone else fell. And that very confidence in his own strength preceded his fall. Within hours he would deny Jesus three times, exactly as Jesus foretold. Peter trusted his own resolve, was certain he could not fail, and it was precisely there, in his self-confidence, that he was most vulnerable. His sureness that he would never fall did not prevent his fall; if anything, it set him up for it. This is a warning we all need. We can be confident in our own strength and resolve, sure that we would never fall into some particular sin, never deny our Lord, never fail as others have. And that very confidence is a danger, for it makes us careless, self-reliant, unwatchful, trusting our own strength rather than depending on God. Let anyone who thinks he stands, Paul warns, take heed lest he fall. The confidence that we could never fail is precisely the attitude that precedes a fall. One who trusts in his own heart, the proverb says, is a fool. Peter's sure I will never fall away was the prelude to his denial. This searches our own self-confidence. Are there sins we are sure we would never commit, failures we are certain we are above, areas where we trust our own strength and resolve, confident we could never fall? Peter's example warns us that such confidence is dangerous, that trusting our own strength sets us up for a fall, that the one sure he cannot fail is often the one most vulnerable. Take heed, Paul says, lest you fall. This calls us to humble watchfulness rather than self-confidence. Peter was sure he would never fall, and he fell; and his example calls us not to trust our own strength and resolve, but to watch and depend on God, humbly aware that we could fall, and relying not on our own confidence but on his keeping. And yet there is grace even here, for Jesus, foretelling their failure, also promised to go before them after he was raised; the fall was not the end, and the risen Christ restored the very Peter who denied him. Let us not, then, trust our own strength, being sure we could never fail, but watch humbly and depend on God, who keeps us and restores us even when we fall, rather than presuming, as Peter presumed, that our own resolve will hold.

Are there sins I am sure I would never commit, or failures I am certain I am above, where I trust my own strength and resolve and am confident I could never fall, and can Peter, who declared he would never fall away and yet denied his Lord within hours, warn me that such self-confidence is precisely what precedes a fall, moving me to humble watchfulness and dependence on God rather than trust in my own resolve, mindful that the one who thinks he stands should take heed lest he fall?