2 Corinthians 8:8

I do not speak by command, but on account of the diligence of others, and to prove the genuineness of your love;

1 Corinthians 7:6

But this I say by suggestion, not by command.

Romans 11:12-14

But if their fall is the riches of the world, and their diminution the riches of nations, how much more will their fullness be.

Romans 12:9

Let love be without hypocrisy. Abhor evil, adhere to that which is good,

1 Corinthians 7:12

But to the rest I speak, not the Lord, If any brother has an unbelieving wife, and she is pleased to live with him, let him not leave her;

1 Corinthians 7:25

And concerning the virgins I have no ordinance of the Lord, but I give an opinion as one that has obtained mercy of the Lord to be faithful.

2 Corinthians 6:6

in purity, in knowledge, in long-suffering, in kindness, in the Holy Spirit, in love unfeigned,

2 Corinthians 8:1-3

AND I make known to you, brothers, the grace of God given to the churches of Macedonia,

2 Corinthians 8:10

And in this case I give an opinion; for this is expedient for you, who began before to act in this matter and to act willingly a year ago.

2 Corinthians 8:24

Show them therefore the proof of your love, and of our boasting of you before the churches.

2 Corinthians 9:2

for I know your readiness, of which I boasted in your behalf to the Macedonians that Achaia was ready a year ago, and your zeal has excited many.

2 Corinthians 9:7

Let each one contribute as he chooses in his heart, not with regret or from necessity; for God loves a cheerful giver.

Ephesians 4:15

but speaking the truth with love we may grow to him in all things, who is the head, Christ;

Ephesians 6:24

The grace be with all who love our Lord Jesus Christ with constancy.

Hebrews 10:24

and let us observe one another for a provocation of love and of good works,

James 2:14-16

What is the profit, my brothers, if a man says he has faith, but has not works? Can faith save him?

1 Peter 1:22

Having purified your souls by obeying the truth to unfeigned brotherly love, love one another fervently, from the heart,

1 John 3:17-19

And whoever has the goods of the world and sees his brother have need, and withholds his compassions from him, how continues the love of God in him?

Treasury of Scripture Knowledge

Summary

I speak not by commandment, but by occasion of the forwardness of others, and to prove the sincerity of your love.

Bible References

Speak

2 Corinthians 8:10
And in this case I give an opinion; for this is expedient for you, who began before to act in this matter and to act willingly a year ago.
2 Corinthians 9:7
Let each one contribute as he chooses in his heart, not with regret or from necessity; for God loves a cheerful giver.
1 Corinthians 7:6
But this I say by suggestion, not by command.

By occasion

2 Corinthians 8:1
AND I make known to you, brothers, the grace of God given to the churches of Macedonia,
2 Corinthians 9:2
for I know your readiness, of which I boasted in your behalf to the Macedonians that Achaia was ready a year ago, and your zeal has excited many.
Romans 11:12
But if their fall is the riches of the world, and their diminution the riches of nations, how much more will their fullness be.
Hebrews 10:24
and let us observe one another for a provocation of love and of good works,

Prove

2 Corinthians 8:24
Show them therefore the proof of your love, and of our boasting of you before the churches.
2 Corinthians 6:6
in purity, in knowledge, in long-suffering, in kindness, in the Holy Spirit, in love unfeigned,
Romans 12:9
Let love be without hypocrisy. Abhor evil, adhere to that which is good,
Ephesians 4:15
but speaking the truth with love we may grow to him in all things, who is the head, Christ;
James 2:14
What is the profit, my brothers, if a man says he has faith, but has not works? Can faith save him?
1 Peter 1:22
Having purified your souls by obeying the truth to unfeigned brotherly love, love one another fervently, from the heart,
1 John 3:17
And whoever has the goods of the world and sees his brother have need, and withholds his compassions from him, how continues the love of God in him?

General references

John 14:15
If you love me, keep my commandments;
2 Corinthians 8:24
Show them therefore the proof of your love, and of our boasting of you before the churches.
1 John 4:11
Beloved, if God so loved us, we ought also to love one another.