"Sing for joy in the LORD, O you righteous ones; Praise is becoming to the upright."
To those who have a relationship with the Lord, the praise they offer to Him makes them beautiful. It's like wearing attire that really makes you look great. Like the special dress which always brings compliments to the woman who wears it. Or the suit and tie that makes people admire the man who puts it on. When we're praising God, our countenance shines. Whether we're praising Him silently or in a crowded auditorium with a worship band, praise becomes us. It always does. But I suggest that there is a particular beauty that comes in praising God from a weeping heart. The person who is suffering, or impoverished, or brokenhearted, and can still find it within themselves to praise God, has found the secret to lasting beauty. Praise is easy when things are going well, but to praise God in the midst of hard circumstances is a sacrifice. And sacrificial praise is the most becoming of all.