View source for 2:1 Why are Christians exhorted here to give more earnest heed to New Testament truth and warned against letting it slip away?

==2:1	Why are Christians exhorted here to give more earnest heed to New Testament truth and warned against letting it slip away?==
Because Jesus, who introduced New Testament truth, is superior to the prophets and the angels who introduced the Old Testament. 

This is a warning against indifference. If those under the old covenant, who had less privileges, were punished for every sin, those under the new covenant who have the greater light in Christ, will be punished also for each sin. 

The greater the privilege, the greater the punishment for disobedience or neglect (CP V2-4 with Lu 12:47-48; He 6:4-6; 10:26-31; 2Pe 2:20-22). This proves that salvation is not an unforfeitable possession in this life. 

(See also comments on He 3:7-11, 4:11-12, 6:4-6, 10:26-31, 2Pe 2:20-22)

[[Hebrews:-]]