Titus 3:4

But when the kindness and love for men of God our Saviour appeared,

Titus 2:10-11

not contradicting, not purloining, but showing all good faith; that they may adorn the teaching of God our Saviour in all things.

Ephesians 2:4-10

but God, who is rich in mercy, on account of his great love wherewith he loved us, gave to us,

Hebrews 9:26

for then must he have suffered many times since the foundation of the world; but now once in the end of the world he hath appeared, to put away sin by means of his sacrifice.

Romans 2:4

Or dost thou despise the riches of his goodness and forbearance and longsuffering, not knowing that the goodness of God is leading thee to repentance?

Romans 5:20-21

Moreover the law came in in addition, that the trespass might abound; but where sin abounded, grace abounded much more;

1 Timothy 1:1

Paul, an apostle of Christ Jesus, through the command of God, our Saviour, and Christ Jesus, our hope,

1 Timothy 2:3

For this is good and acceptable in the sight of God our Saviour,

1 Timothy 4:10

For to this end we both labor and suffer reproach, because we have placed our hope in the living God, who is the Saviour of all men, especially of believers.

2 Timothy 1:10

but is now made manifest by the appearing of our Saviour Christ Jesus, who abolished death, and brought life and incorruption to light through the gospel,

Titus 1:3

but in his own seasons manifested his word through the preaching with which I was intrusted by the commandment of God our Saviour:

Treasury of Scripture Knowledge

Summary

But after that the kindness and love of God our Saviour toward man appeared,

Bible References

The kindness

Titus 2:11
For the grace of God, that bringeth salvation to all men, was manifested,
Romans 5:20
Moreover the law came in in addition, that the trespass might abound; but where sin abounded, grace abounded much more;
Ephesians 2:4
but God, who is rich in mercy, on account of his great love wherewith he loved us, gave to us,

Appeared

Titus 2:11
For the grace of God, that bringeth salvation to all men, was manifested,
2 Timothy 1:10
but is now made manifest by the appearing of our Saviour Christ Jesus, who abolished death, and brought life and incorruption to light through the gospel,
Hebrews 9:26
for then must he have suffered many times since the foundation of the world; but now once in the end of the world he hath appeared, to put away sin by means of his sacrifice.

General references

Romans 9:16
So then it dependeth not on him that willeth, nor on him that runneth, but on God who showeth mercy.
Ephesians 2:9
not of works, lest any one should boast.
1 John 4:19
We love, because he first loved us.