1 John 2:10

whereas, he that loveth his brother, abideth in the light, and is in no danger of stumbling.

2 Peter 1:10

Wherefore, my brethren, be the more diligent thus to make your calling and election sure; for if ye do these things ye shall never fall.

1 John 3:14

since we know that we have passed from death to life, because we love the brethren: he, that loveth not his brother, remaineth in death.

Matthew 13:21

yet hath he no root in himself, and therefore is but for a short season; and when affliction cometh, or persecution on account of the word, he is as soon disgusted.

Matthew 18:7

Wo will be to the world from such offenses; for it is of necessity that offenses come: but wo to that man by whom the offense cometh.

Luke 17:1-2

Then said He to the disciples, It is impossible that offences should not come: but wo to him by whom they come.

John 8:31

Therefore said Jesus to the Jews that believed on Him, If ye continue in my word, ye are indeed my disciples.

Romans 9:32-33

because they sought it not by faith, but by the works of the law, for they stumbled at that stumbling-stone;

Romans 14:13

Let us not therefore judge one another any more: but judge this rather, not to lay a stumbling-block or scandal before a brother.

Philippians 1:10

that ye may try things that differ, that ye may be sincere and without offence until 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
since we know that we have passed from death to life, because we love the brethren: he, that loveth not his brother, remaineth in death.
John 8:31
Therefore said Jesus to the Jews that believed on Him, If ye continue in my word, ye are indeed my disciples.
Romans 14:13
Let us not therefore judge one another any more: but judge this rather, not to lay a stumbling-block or scandal before a brother.
2 Peter 1:10
Wherefore, my brethren, be the more diligent thus to make your calling and election sure; for if ye do these things ye shall never fall.

Occasion of stumbling

Matthew 13:21
yet hath he no root in himself, and therefore is but for a short season; and when affliction cometh, or persecution on account of the word, he is as soon disgusted.
Matthew 18:7
Wo will be to the world from such offenses; for it is of necessity that offenses come: but wo to that man by whom the offense cometh.
Luke 17:1
Then said He to the disciples, It is impossible that offences should not come: but wo to him by whom they come.
Romans 9:32
because they sought it not by faith, but by the works of the law, for they stumbled at that stumbling-stone;
Philippians 1:10
that ye may try things that differ, that ye may be sincere and without offence until the day of Christ;

General references

John 11:10
but if any one walk in the night, he stumbleth; because he hath no light.
John 13:35
if ye have mutual love to each other.
John 15:12
This is my commandment, that ye love one another, as I have loved you.
Hebrews 13:1
Let brotherly love continue.