1Co 1:18 "...the message of the cross is foolishness to those who are perishing but to us who are being saved it is the power of God."
Our attitude towards the death of Christ on the cross is an index of our spiritual condition. To those who are "perishing" who will ultimately end up in hell, the message about Christ dying for the sins of sinners is nonsensical, meaningless, worthless and unbearably boring.
You see them well-rested from a good night's sleep, alert, lively and enthusiastic and then you come in and tell them about the death of Christ on the cross for their sins, and then gradually, by and by, like a sleeping pill, with glassy eyes, they look the other way and then make a big "O" yawn.
They just can't help it. They try and attempt to push themselves to make it valuable and precious, but truth be told, it has no value in their hearts. For them, the message of Christ dying for their sins is trash not treasure. Garbage not gold. Piffle not precious.
They may say: "Oh it's precious and valuable!" but that's just because that's the standard and expected answer. They say it because it's the correct answer not because that's what's really in their hearts.
But to those who have been convicted of sin and have realized their utter helplessness and powerlessness in saving themselves, the message that Christ died for their sins is truly and genuinely precious. It is the power of God to salvation---it is their only hope to be saved.