John MacArthur wrote,
A thankful heart is one of the primary identifying characteristics of a believer. It stands in stark contrast to pride, selfishness, and worry. And it helps fortify the believer’s trust in the Lord and reliance of His provision, even in the toughest times. No matter how choppy the seas become, a believer’s heart is buoyed by constant praise and gratefulness to the Lord (John MacArthur, Grace to You, Newsletter, March 2009, © 1969-2008. www.gty.org, Grace to You. All rights reserved. Used by permission).
William Law wrote,
For if [a Christian] cannot thank and praise God as well in calamities and sufferings as in prosperity and happiness, he is as far from the piety of a Christian as he that only loves them that love him is from the charity of a Christian. For to thank God only for such things as you like is no more a proper act of piety than to believe only what you see is an act of faith. Resignation and thanksgiving to God are only acts of piety when they are acts of faith, trust and confidence in the divine goodness.
William Temple wrote,
It is probable that in most of us the spiritual life is impoverished and stunted because we give so little place to gratitude. It is more important to thank God for blessings received than to pray for them beforehand. For that forward-looking prayer, though right as an expression of dependence upon God, is still self-centered in part, at least, of its interest; there is something we hope to gain by our prayer. But the backward-looking act of thanksgiving is quite free from this. In itself it is quite selfless. Thus it is akin to love. All our love to God is in response to his love for us; it never starts on our side. "We love, because he first loved us" (1 John 4:19). (William Temple, 3000 Quotations on Christian Themes. Christianity Today, v. 32, n. 17).
