Dovid explains the first part of his plan to Yonasan

Dovid tells Yonasan that Shaul is still trying to kill him but Yonasan finds it hard to believe

After his messengers fail to arrest Dovid, Shaul travels there to do it himself

Dovid flees to Shmuel where they spend the night uncovering a hidden secret

Michal covers Dovid's escape by placing a mannequin in Dovid's bed; Shaul discovers her betrayal

After Dovid returns to serving Shaul, Shaul once again tries to kill him; Michal helps Dovid escape at night

Yehonosan's puts his plan into action and Shaul swears he will not kill Dovid.

After Shaul fails to turn Yonasan against Dovid, Yonasan devises a plan to help Dovid

Dovid's continued success increases his reputation but also increases Shaul's fear and hatred of him

The Gemara in Sanhedrin 19b discusses (1) What was the problem with Dovid's marriage to Meirav and Michal? (2) How could Dovid have married sisters when this is prohibited? (3) If Dovid was married to both of them, how could Shaul have given them to other men?