Matthew 5:24

While your offering is still before the altar, first go and make peace with your brother, then come and make your offering.

Mark 9:50

Salt is good; but if the taste goes from it, how will you make it salt again? Have salt in yourselves, and be at peace one with another.

Romans 12:17-18

Do not give evil for evil to any man. Let all your business be well ordered in the eyes of all men.

Job 42:8

And now, take seven oxen and seven sheep, and go to my servant Job, and give a burned offering for yourselves, and my servant Job will make prayer for you, that I may not send punishment on you; because you have not said what is right about me, as my servant Job has.

Proverbs 25:9

Have a talk with your neighbour himself about your cause, but do not give away the secret of another:

Matthew 18:15-17

And if your brother does wrong to you, go, make clear to him his error between you and him in private: if he gives ear to you, you have got your brother back again.

Matthew 23:23

A curse is on you, scribes and Pharisees, false ones! for you make men give a tenth of all sorts of sweet-smelling plants, but you give no thought to the more important things of the law, righteousness, and mercy, and faith; but it is right for you to do these, and not to let the others be undone.

1 Corinthians 6:7-8

More than this, it is not to your credit to have causes at law with one another at all. Why not put up with wrong? why not undergo loss?

1 Corinthians 11:28

But let no man take of the bread and the cup without testing himself.

1 Timothy 2:8

It is my desire, then, that in every place men may give themselves to prayer, lifting up holy hands, without wrath or argument.

James 3:13-18

Who has wisdom and good sense among you? let him make his works clear by a life of gentle wisdom.

James 5:16

So then, make a statement of your sins to one another, and say prayers for one another so that you may be made well. The prayer of a good man is full of power in its working.

1 Peter 3:7-8

And you husbands, give thought to your way of life with your wives, giving honour to the woman who is the feebler vessel, but who has an equal part in the heritage of the grace of life; so that you may not be kept from prayer.

Treasury of Scripture Knowledge

Summary

Leave there thy gift before the altar, and go thy way; first be reconciled to thy brother, and then come and offer thy gift.

Bible References

There

Matthew 18:15
And if your brother does wrong to you, go, make clear to him his error between you and him in private: if he gives ear to you, you have got your brother back again.
Job 42:8
And now, take seven oxen and seven sheep, and go to my servant Job, and give a burned offering for yourselves, and my servant Job will make prayer for you, that I may not send punishment on you; because you have not said what is right about me, as my servant Job has.
Proverbs 25:9
Have a talk with your neighbour himself about your cause, but do not give away the secret of another:
Mark 9:50
Salt is good; but if the taste goes from it, how will you make it salt again? Have salt in yourselves, and be at peace one with another.
Romans 12:17
Do not give evil for evil to any man. Let all your business be well ordered in the eyes of all men.
1 Corinthians 6:7
More than this, it is not to your credit to have causes at law with one another at all. Why not put up with wrong? why not undergo loss?
1 Timothy 2:8
It is my desire, then, that in every place men may give themselves to prayer, lifting up holy hands, without wrath or argument.
James 3:13
Who has wisdom and good sense among you? let him make his works clear by a life of gentle wisdom.
James 5:16
So then, make a statement of your sins to one another, and say prayers for one another so that you may be made well. The prayer of a good man is full of power in its working.
1 Peter 3:7
And you husbands, give thought to your way of life with your wives, giving honour to the woman who is the feebler vessel, but who has an equal part in the heritage of the grace of life; so that you may not be kept from prayer.

And then

Matthew 23:23
A curse is on you, scribes and Pharisees, false ones! for you make men give a tenth of all sorts of sweet-smelling plants, but you give no thought to the more important things of the law, righteousness, and mercy, and faith; but it is right for you to do these, and not to let the others be undone.
1 Corinthians 11:28
But let no man take of the bread and the cup without testing himself.

Basic English, produced by Mr C. K. Ogden of the Orthological Institute - public domain