Cursed

[His_nee (Jeff)]

I personally don't believe they do and here's why.

Hebrews 8
12 For I will be merciful to their unrighteousness, and their sins and their lawless deeds I will remember no more.”
13 In that He says, “A new covenant,” He has made the first obsolete. Now what is becoming obsolete and growing old is ready to vanish away.
Verse 12 puts a kibosh on generational curses.
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some, yes. not everyone's sins is forgiven though. else no one would be thrown in the lake of fire, and no one would have there name erased from the lamb's book of life. Yhwh's Decision. Yhwh's Government. Yhwh's Plan.

also note from vs 13 ".... becoming obsolete and growing old is ready to vanish ... " i.e. not already done for all.

also, over the last few decades i've seen or heard of many believers delivered from curses of many kinds.Yeshua is the deliverer. when Yeshua delivers(saves), it is no longer the case that "for lack of knowledge, MY people perish".... (looking up ref now, will edit in shortly) >>> http://biblehub.com/hosea/4-6.htm

Hosea 4:6 ►
Parallel Verses
New International Version
my people are destroyed from lack of knowledge. "Because you have rejected knowledge, I also reject you as my priests; because you have ignored the law of your God, I also will ignore your children.

 

[His_nee (Jeff)]

the "lack of knowledge" today is rampant, in spite of the exponential increase in information.

footnote: 'knowledge' in Scripture often is "experiential knowledge" in original. - particularly experience with Yhwh, Yeshua, and Truth (experience handling truth in daily life over decades; often ignored even by believers today to their own detriment and the detriment of all those around).

 

[His_nee (Jeff)]

Do you believe that if you sin that God will curse you and your children.... etc?

yes.
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i did. and He did. yet mercifully and graciously, i learned/am learning obedience through the things suffered.