Why did David express gladness in going to the house of the Lord?

David's expression of gladness in Psalm 122 reflects his understanding of the spiritual significance of the house of the Lord. For him, going to the house meant entering a space where God’s glory was manifested and where divine worship could take place. This is important because it teaches that our joy in worship does not stem from the physical structure but from the presence of God and the fellowship of the community of believers. It was in the simple tabernacle, a mere tent, that David experienced closeness to God, and his gladness highlights the privilege of being able to worship freely and gather in God's presence.