When I was in Bible college, I would watch many young unmarried guys hold doors and carry heavy items for the girls they liked, hoping to catch the eye of one of them. And we single girls would go out of our way to do something for a guy we liked: helping him study for a test or baking a batch of his favorite kind of cookie.
But what about doing stuff for a guy or girl you can't marry?
What about helping a young mother load groceries while she gets her children into the car?
Or baking cookies for the weird guy at work no one talks to?
My dear single brothers and sisters, don't let your attention fall only on the young men or women whom you can get a date out of, but use your strength also for those who can give you nothing in return: the too-old, the too-young, the already-married. Treat the "older women as mothers, the younger women as sisters, with absolute purity."* In doing so, you will cultivate a habit that you will carry into your own marriage and family. Because there will come a day when the guy or girl you're dating so excitedly now becomes the tired wife or the distant husband later on. There will come a day when the person you get butterflies about will no longer stir up those amazing feelings. And this is when your heart will be tested. You will be able to continue to love and support your spouse through their most difficult moments because you have been doing it for others all along!
The Lord says, here is the sort of fast I want —
sharing your food with the hungry,
taking the homeless poor into your house,
clothing the naked when you see them,
fulfilling your duty to your kinsmen!
Then the Lord will always guide you;
he will satisfy your needs in the desert,
he will renew the strength in your limbs;
so that you will be like a watered garden,
like a spring whose water never fails.
(From the book of Isaiah, chapter 58, verse 6 and 11)
*From the book of First Timothy, chapter 5, verse 2