[CynicalBear]

The Greek word used in verse one means “stumbling blocks”.

[American Constitutionalist]

As in ? deliberately causing someone to trip up, to fall, to prevent someone to proceed.
As in ? just like the cut throat situations in offices or even in Churches where some think they deserve a promotion over another and the other person is trying to get a promotion by working hard but the other person in jealousy causes them to stumble ?
Or ? a stumbling block could be preventing someone from hearing the truth about the good news of their salvation in the Gospel ?
Yes, those religious leaders sure did place a lot of laws and stumbling blocks for the people to jump over to even try to get close to God.