Examples:

• Viracocha has been a labor of love since the beginning.
• Restoring a historical home is a labor of love.
• When they say "labor of love, " this is labor.
• A labor of love is the innate function of the soul.
• It's a tremendous labor of love.
• And a labor of love.
• This is a labor of love.
• A labor of love, huh?
• For most bloggers, blogging is an unpaid labor of love.
• Talk about a labor of love.