1)
"ve'Im Yifneh Levavcha. What is the significance of the words "ve'Lo Sishma"? Why does the Torah need to insert them?
1.
Sukah, 46b: To teach us that someone who turns away from Torah (gives up on revising what one learnt - Torah Temimah) he will not be able to continue - because he will not receive Divine Assistance on what he subsequently learns.