If there were no conditions for forgiveness, then salvation would be universal. Everyone would be saved regardless of their status as a believer or unbeliever.

However, there are biblical conditions for forgiveness.  The biblical conditions for forgiveness are repentance (changing one’s mind) and confession of sin* (agreeing with God against ourselves).  Therefore, universal salvation (everyone is going to heaven) is a false teaching.

*Vine’s Complete Expository Dictionary of Old and New Testament Words Thomas Nelson, Inc., Copyright 1984, 1996.