Jesus speaks to the gift itself, when he speaks of honoring ones parents. And at anytime our parents (even as any of us) can be made a widow.
Paul says, says, Honour thy father and mother; (which is the first commandment with promise) That it may be well with thee, and thou mayest live long on the earth.
Which here would have to indicate an older child able to do so because it also says,
If any widow have children or nephews, let them learn first to shew piety at home, and to requite their parents: for that is good and acceptable before God.
He also says
But if any provide not for his own, and specially for those of his own house, he hath denied the faith, and is worse than an infidel.
Whereas it seems that the Pharisees would devour widows homes, and would (in respect to the commandment) twist it upon the ones who were to honor their mother and father (even with such a gift) into calling it a corban (or as a gift devoted to God). Jesus said (in respects to them doing this) they suffered not those to do for their parents and made the commandment of God to none effect, Like mass producing infidels
I always wondered how they did that though. Like did they take that commandment and somehow use it to their own advantage? Like saying, hey, WE are your spiritual parents (so to speak) and therefore any help they (your natural parents might receive of you) you should really divert to us (your spiritual parents). Like after that manner?
I'm really guessing because they were always trying to get their grubby hands on gifts and rewards (and the homes of widows were devoured through their doing.
Which would make sense of the next verse
Thy princes are rebellious, and companions of thieves: every one loveth gifts, and followeth after rewards: they judge not the fatherless, neither doth the cause of the widow come unto them.
Like multiplying transgressors among men by the twisting of the commandment to honor ones parents and of the honor (per the gift) to be diverted into their covetous hands.
Thats sort of what I was thinking of
We have the stranger, widow, fatherless even in the OT and the NT
Exodus 22:21 Thou shalt neither vex a stranger, nor oppress him: for ye were strangers in the land of Egypt.
Exodus 22:22 Ye shall not afflict any widow, or fatherless child.
Exodus 22:23 If thou afflict them in any wise, and they cry at all unto me, I will surely hear their cry;
Exodus 22:24 And my wrath shall wax hot, and I will kill you with the sword; and your wives shall be widows, and your children fatherless.
Which was said of Judas also (who cared not for the poor) in the part after "let his days be few" it says...
Psalm 109:9 Let his children be fatherless, and his wife a widow.
Whereas here it says,
Duet 10:17 For the LORD your God is God of gods, and Lord of lords, a great God, a mighty, and a terrible, which regardeth not persons, nor taketh reward:
They follow after reward even took rewards
Isaiah 1:23 Thy princes are rebellious, and companions of thieves: every one loveth gifts, and followeth after rewards: they judge not the fatherless, neither doth the cause of the widow come unto them.
Shown in Jesus Christ...
Mat 23:14 Woe unto you, scribes and Pharisees, hypocrites! for ye devour widows' houses, and for a pretence make long prayer: therefore ye shall receive the greater damnation
Psalm 146:9 The LORD preserveth the strangers; he relieveth the fatherless and widow: but the way of the wicked he turneth upside down.
Duet 10:18 He doth execute the judgment of the fatherless and widow, and loveth the stranger, in giving him food and raiment.
Duet 24:17 Thou shalt not pervert the judgment of the stranger, nor of the fatherless; nor take a widow's raiment to pledge:
Exodus 22:22 Ye shall not afflict any widow, or fatherless child.
James 1:27 Pure religion and undefiled before God and the Father is this, To visit the fatherless and widows in their affliction, and to keep himself unspotted from the world.
Zach 7:10 Oppress not the widow, nor the fatherless, the stranger, nor the poor; and let none of you imagine evil against his brother in your heart.
Isaiah 1:17 Learn to do well; seek judgment, relieve the oppressed, judge the fatherless, plead for the widow.
1Ti 5:4 But if any widow have children or nephews, let them learn first to shew piety at home, and to requite their parents: for that is good and acceptable before God.
1Ti 5:8 But if any provide not for his own, and specially for those of his own house, he hath denied the faith, and is worse than an infidel.
Denying the faith itself is in that one (well, if you don't do this)
And because even sinners do the same (love their own) as Jesus pointed out. So I can see why these would be worse than an infidel (unbeliever) for not doing what even sinners actually do.