“I am going to the Father”
The announcement by Jesus that he is about to leave them (13:33) has caused them great anxiety and consternation. So Jesus reassures them repeatedly that they needn’t be distressed by his departure, as it will mean great benefit for them (14:2-3; 14:18-20; 16:7). However, the disciples should have rejoiced to hear that Jesus was going to the Father, not just for their own sakes, but for his too! (28)
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In his life on earth Jesus had to lay aside the glory which he had with the Father (17:5) and accept a lowly human position, no longer equal with God (Phil.2:6-8). During that time he was still truly one with the Father (10:30; 14:10-11) and still truly God (1:14; 20:28), but as the obedient Son (4:34; 8:29) the Father was greater than him. Now, in going back to the Father, he will be restored to the place of glory equal with the Father that was rightfully his.
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So those who love him should not only obey him (14:23) but should also be glad that he is no longer present in this world, because he is again exalted to the highest place as Lord (Acts 2:33-36; Phil.2:9-11). He tells them this so that their faith will be strengthened, not weakened, by the events which are about to unfold (29; 13:19).