Think about this: Christ loved us so much that he gave himself up for us, a fragrant offering to God.1 He made the ultimate sacrifice for you on the cross, loving you to death and beyond. Even as time marches on, His love stays constant.
It's so important for you to grasp that the biggest sacrifice has already been made. But now, you get to be a pleasing offering to God, too. Let your service, your honor, and your giving be a delight to your Heavenly Father. Know that Jesus has given you everything, and anything you offer pales in comparison to His love.
Giving to God, supporting His work, it's an expression of love. Don't see it as a burden or an obligation, but as a response to God's love and Jesus' sacrifice. It's a way of saying "thank you" for everything Heaven has poured into your life.
1Ephesians 5:2
Let such as feel oppression’s load thy tender pity share: And let the helpless, homeless poor, be thy peculiar care.Go, bid the hungry orphan be with thy abundance blest; Invite the wand’rer to thy gate, and spread the couch of rest. 5 Let him who pines with piercing cold by thee be warm’d and clad; Be thine the blissful task to make the downcast mourner glad.