The following comes from a recent sermon I heard from one of my own pastors. A link to the audio of that message is provided after the quote.
When speaking on salvation . . .
. . . before we could ever doubt God on why He would make it so narrow and only offer one way to salvation, remember this . . .
That God does not owe anyone any way of salvation. He doesn’t owe you even one sermon! (emphasis added)
Yet there He goes . . . offering you invitation to abide in Him. And this is the reason why there is something deeply cruel about rejecting the son of God. Because it is the rejection of His free grace in which He invites you to receive.