Midrash su Salmi 55:14

Said Rabbi Yochanan: Once I was walking on a path and I came across a man who was collecting firewood. I spoke to him but he did not respond to me. Afterwards he approached me and said "Rabbi, I am dead and not alive", I said to him: "If you are dead - why do you need the firewood?". He responded: "Rabbi, listen carefully to what I am saying to you, when I was alive, my friend and I were doing a sin in my palace and when we came here we were sentenced to punishment by fire, when I gather wood they burn my friend, and when my friend gathers wood they burn me". I asked him: "Till when do you have to endure this punishment?" He told me: "When I came here I left my wife pregnant and I know she is pregnant with a son, therefore, please take caution with him and from the time he is born until he is five years old take him to he house of his rabbi to learn biblical verse (mikrah) because when he can say Barchu Et Hashem HaMevorach then I will be saved from the punishment of Gehenna".

R. Ami said: "Doeg did not die before he had forgotten all his studies, as it is said (Pr. 5, 23) He will indeed die for want of correction; and through the abundance of his folly will he sink into error." R. Jochanan said: "Three angels of destruction attended Doeg; one who caused him to forget his study, and one who burned his soul, and the third who scattered his ashes in the houses of prayer and study." R. Jochanan said further: "Doeg and Achitophel did not see each other, as Doeg was in the days of Saul and Achitophel in the days of David." R. Jochanan said further: "Both Doeg and Achitophel have not lived half of their days." We are also taught so in the following Baraitha: All the years of Doeg were only thirty-four, and those of Achitophel, thirty-three.

R. Jochanan said further: "At first David called Achitophel master, then he called him associate and finally he called him disciple. At first he called him master, (Ps. 55, 14) But it was thou, a man mine equal, my companion and my familiar friend; then he called him associate, (Ib.) We took sweet counsel together, etc.; and finally he called him disciple (Ib. 41, 10) Yea, mine own familiar friend, in whom I trusted, who did eat of my bread, etc.