Psalm 119:71
It is good for me that I have been afflicted; that I might learn thy statutes.

Romans 5:3-5
And not only so, but we glory in tribulations also: knowing that tribulation worketh patience;  And patience, experience; and experience, hope: 
And hope makes not ashamed; because the love of God is shed
abroad in our hearts by the Holy Ghost which is given unto us.

Romans 8:35
Who shall separate us from the love of Christ? shall tribulation, or distress,
or persecution, or famine, or nakedness, or peril, or sword?

Romans 8:13
For if ye live after the flesh, ye shall die: but if ye through the Spirit do
mortify the deeds of the body, ye shall live.

Romans 8:18
For I reckon that the sufferings of this present time are not worthy to be compared with the glory which shall be revealed in us.

2 Cor. 1:3-4
Blessed be God, even the Father of our Lord Jesus Christ, the Father of mercies,
and the God of all comfort;  Who comforteth us in all our tribulation,
that we may be able to comfort them which are in any trouble,
by the comfort wherewith we ourselves are comforted of God.

2 Cor. 1:7
And our hope of you is stedfast, knowing, that as ye are partakers of the sufferings,
so shall ye be also of the consolation.

Eph. 3:13
Wherefore I desire that ye faint not at my tribulations for you, which is your glory.