1)
Why did he say "ha'Tov Ki Yachkor Eschem"?
1.
Rashi: If He investigates you, you will be found to be liars.
2.
Malbim: You know that there is no substance to your words. You flatter Hashem to justify Him with Sheker. He hates this - he wants a person to speak Emes with his mouth and in his heart! Would you like Hashem to test what is in your hearts?!
2)
What was the question "Im k'Hasel be'Enosh Tehaselu Vo"?
1.
Rashi: Will you say, we lied for Your honor?!
2.
Malbim: He wants to know if your answers to justify Hashem were true in your hearts, or mere flattery, like one says Sheker to a person - the mouth is unlike what is in his heart.
