1 John 2:10

He that loves his brother continues in the light, and there is no offense in him;

2 Peter 1:10

Wherefore, brothers, use the greater diligence to make your calling and election sure; for doing these things you shall never fall.

1 John 3:14

We know that we have passed from death to life, because we love the brothers; he that loves not, continues in death.

Matthew 13:21

but has no root in himself, but is only a temporary [disciple]; and when affliction or persecution arises on account of the word, he is immediately offended.

Matthew 18:7

Woe to the world because of offenses! For offenses must necessarily come, but woe to that man by whom the offense comes!

Luke 17:1-2

AND he said to his disciples, It is inevitable that offenses should come; but woe to him by whom they come;

John 8:31

Then Jesus said to the Jews who believed on him, If you continue in my word, you are my disciples indeed;

Romans 9:32-33

For what reason? Because they are not of faith, but as it were of works of the law; for they stumbled at the stone of stumbling,

Romans 14:13

Let us not therefore judge one another, but judge this rather, not to place a stumbling-block or an offense before a brother.

Philippians 1:10

that you may prove the excellent, that you may be without fault and without offense in the day of Christ,

Treasury of Scripture Knowledge

Summary

He that loveth his brother abideth in the light, and there is none occasion of stumbling in him.

Bible References

That loveth

1 John 3:14
We know that we have passed from death to life, because we love the brothers; he that loves not, continues in death.
John 8:31
Then Jesus said to the Jews who believed on him, If you continue in my word, you are my disciples indeed;
Romans 14:13
Let us not therefore judge one another, but judge this rather, not to place a stumbling-block or an offense before a brother.
2 Peter 1:10
Wherefore, brothers, use the greater diligence to make your calling and election sure; for doing these things you shall never fall.

Occasion of stumbling

Matthew 13:21
but has no root in himself, but is only a temporary [disciple]; and when affliction or persecution arises on account of the word, he is immediately offended.
Matthew 18:7
Woe to the world because of offenses! For offenses must necessarily come, but woe to that man by whom the offense comes!
Luke 17:1
AND he said to his disciples, It is inevitable that offenses should come; but woe to him by whom they come;
Romans 9:32
For what reason? Because they are not of faith, but as it were of works of the law; for they stumbled at the stone of stumbling,
Philippians 1:10
that you may prove the excellent, that you may be without fault and without offense in the day of Christ,

General references

John 11:10
but if he walks in the night he stumbles, because the light is not in it.
John 13:35
By this shall all know that you are my disciples, if you have love one for another.
John 15:12
This is my commandment, that you love one another as I have loved you.
Hebrews 13:1
Let brotherly love continue.