It is.

Matthew 16:23
But Jesus turned and said to Peter, "Get behind Me, Satan! You are a stumbling block to Me. For you do not have in mind the things of God, but the things of men."

Matthew 18:7
Woe to the world for the causes of sin. These stumbling blocks must come, but woe to the man through whom they come!

Romans 14:13, 20, 21
Therefore let us stop judging one another. Instead, make up your mind not to put any stumbling block or obstacle in your brother's way. . . .

Romans 16:17
Now I urge you, brothers, to watch out for those who create divisions and obstacles that are contrary to the teaching you have learned. Turn away from them.

1 Corinthians 8:13
Therefore, if what I eat causes my brother to stumble, I will never eat meat again, so that I will not cause him to stumble.

1 Corinthians 10:32
Do not become a stumbling block, whether to Jews or Greeks or the church of God,

1 Corinthians 11:19
And indeed, there must be differences among you to show which of you are approved.

2 Thessalonians 2:10-12
and with every wicked deception directed against those who are perishing, because they refused the love of the truth that would have saved them. . . .

Revelation 2:14, 20
But I have a few things against you, because some of you hold to the teaching of Balaam, who taught Balak to place a stumbling block before the Israelites so they would eat food sacrificed to idols and commit sexual immorality. . . .

Revelation 13:14
Because of the signs it was given to perform on behalf of the first beast, it deceived those who dwell on the earth, telling them to make an image to the beast that had been wounded by the sword and yet had lived.