Joy happens here when we live with heaven on our minds!
15 All of us who are mature [pursuing spiritual perfection] should have this attitude. And if in any respect you have a different attitude, that too God will make clear to you. 16 Only let us stay true to what we have already attained.
17 Brothers and sisters, together follow my example and observe those who live by the pattern we gave you. 18 For there are many, of whom I have often told you, and now tell you even with tears, who live as enemies of the cross of Christ [rejecting and opposing His way of salvation], 19 whose fate is destruction, whose god is their belly [their worldly appetite, their sensuality, their vanity], and whose glory is in their shame—who focus their mind on earthly and temporal things. 20 But [we are different, because] our citizenship is in heaven. And from there we eagerly await [the coming of] the Savior, the Lord Jesus Christ; 21 who, by exerting that power which enables Him even to subject everything to Himself, will [not only] transform [but completely refashion] our earthly bodies so that they will be like His glorious resurrected body.