And the Messengers about whom We have explained upon you previously, and the Messengers We have not yet explained upon you about them, and Lord Allah spoke to Moses a Speech.
It is told in verse 40: 78: “We have sent Messengers before you about some of whom We have explained you, while We have not explained you about others; no Messenger can bring any sign unless with Lord’s Permission, once Lord’s Command has come, the matters will be decided with Truth, and thereby the falsehood men will be losers”. It is told in verse 17: 81: "Truth has arrived and falsehood has perished; indeed falsehood is to perish". Adhikr is sent down to deliver mankind from the darkness to the Light (Straightpath) as told in verse 14: 1. See explanation 2: 253; 3: 101-102, and 4: 115.