photo courtesy of Integrated Catholics
It is the same as in the second reading when the salvation became possible only because God himself gave the solution by sending his only Son.
In the Gospel then, the three temptations simply lead our attention away from God through whom our lives totally depend.
They simply tell us any of them can be our gods. Our grace therefore is to detect how they destroy our lives. But the second point is more important - how do we place our full and total trust in the Lord?
The sins are materialism, power, and pride. The three alternatives are poverty, humility, and embracing persecution for the sake of the Kingdom of heaven. When we proclaim our poverty and emptiness, the more we rely on God. The more we embrace humility, the more we place ourselves under God's service. And the more we embrace persecution, the more we exult God in our lives.