You love them.
I know this because I see what you do. I see you roll out of bed night after night, the first one up to change diapers or wet sheets. I see you welcoming a pancake making assistant when I know her presence makes the process longer, more difficult. I see you say no when it would be easier to say yes. I see you put aside money each month for their college funds. I see you hold and tickle and snuggle and just enjoy being with them.
I know this because I watch them with you. I see the big one's face light up when you come home from work, watch her put down her toys and run full force across our little court to your arms. I hear her request a Daddy-Daughter Date, beg for a run with you in the jogging stroller. I see a smile spread across the little one's face at the sight of you, her cheeks round and joyful. I see them both in your arms, and there is trust and contentment and peace.
I know this because you grieve the one we lost. We mourned her together, and I was never more sure I'd married the right man. You wore the cuff links with her footprints to your brother's wedding. When you pray for her, there are still tears.
You love them.
There are lot of things I could say about you on Father's Day, but I think this is the most important one. Our girls know the love of their father, and in that, you are giving them a priceless gift.