God does not want any person to perish.
“For God so loved the world that he gave his one and only Son, that whoever believes in him shall not perish but have eternal life.” John. 3:16
Becoming a chirstian means that a person finds a connection to God through Jesus, receives the forgiveness of sin and makes Jesus his/her master.
“But to all who believed him and accepted him, he gave the right to become children of God.” John. 1:12