Jeremiah 31: 31-34
The prophet foretells the time when the Lord will renew his covenant with all people, writing it on their hearts. 

Hebrews 5: 7-9
Although Son of God, Jesus submitted to the Father’s will, and so became the source of salvation for all who obey him. 

John 12: 20-33
The time of Jesus’ passion approaches and he explains how his death is necessary so that all may be saved.