"We preach Christ crucified"

1 Corinthians, chapter 1 verse 23

"Christ died for our sins"

1 Corinthians, chapter 15 verse 3

The Bible tells us that "all have sinned and come short of the glory of God" (Romans 3v23) and consequently, every one of us "must be born again" (John 3v7).
The wondrous message of the gospel is that, while God despises our sin, He loves each and every individual, and demonstrated this when He gave His only Son to be our Saviour.
Because of Christ's "one sacrifice for sins forever" (Hebrews 10v12), God now freely offers salvation, forgiveness and peace to "whosoever will" (Revelation 22v17).

"For God so loved the world, that he gave His only begotten Son, that whosoever believeth in Him should not perish, but have everlasting life."

John's Gospel, chapter 3 verse 16