1 Samuel 15:23 God states to Saul, “Because you have rejected the word of the Lord (sinned), he has rejected you as king.” Mark 15:34 Jesus states, “My God, My God, why have you forsaken me”.
Now in one sense the statement that was made to me is correct. God never ever rejects anyone who has a desire for Him and comes to Him. In another sense, God is in all places at once, in a relationship (of some kind) with every single person always, and has a love for all people. Remember that 2 Peter 3:9 tells us that God desires that all people would be saved.
But in another sense, and here is the part I was trying to stress and did not communicate it very clearly. God does reject and turn His back on Saul and Jesus on the Cross. What I meant to say and what Scripture makes clear is that when God turns His back on both of these individuals He is removing His grace, mercy, and redemptive blessings from both of them. In the case of Saul, God removed it from him the rest of his life. In the case of Jesus on the Cross, God removed the grave, mercy, and redemptive blessing and replaced it with His holy, righteous, perfect wrath, which is why in that moment Christ knew His loving perfect Father was forsaking Him with grace, mercy, and redemptive blessing.
So in the case of Saul, God would and did desire that at some point later after God rejects Him, because He rejected God, that Saul would repent and turn back to God and God would reconcile His grace, mercy, and redemptive blessings back to Saul. But Saul never does and in the reading today we see Saul die a sad Godless death.
In the case of Jesus, He was rejected by His Father in that moment, so that the sheep who desire God will not have to bear the wrath and rejection of God themselves. Jesus Christ in that moment of God turning His grace, mercy, and redemptive blessing from the Son, made an atonement for us.
I pray that explains and clears up some of the confusion from yesterday.