My grandfather recently just ped away, and my sister and I wanted to sing at his funeral.?

My beloved grandfather sadly just ped away )-,: My sister, and I, were thinking about singing a song for him at the funeral in his honor. The song will have to be something abut love, or God, or how we loved him, or some song realting on that topic. We're looking for a song like that, and we also want to sing a more peppy song, a happy song also relating to the situation to cheer up the guests a bit. Does anyone know of any songs we could sing? Or have any good ideas? We need these asap, the funeral is thursday. Thank you -- and God bless.