1 Chronicles 17:16-17 (KJV) says: "And David the king came and sat before the Lord, and said, Who am I, O Lord God, and what is mine house, that thou hast brought me hitherto? And yet this was a small thing in thine eyes, O God; for thou hast also spoken of thy servant's house for a great while to come, and hast regarded me according to the estate of a man of high degree, O Lord God."

In this passage, King David is humbly expressing his gratitude and awe at the faithfulness and grace of God towards him and his family. He acknowledges that he is unworthy of God's blessings and asks in amazement who he is and what his family is, that God has brought them to this point. David also recognizes the magnitude of God's promises to him and his descendants and is again astounded that God would show such favor towards him.

This passage is deeply rooted in the theme of humility and gratitude. David, despite being the powerful king of Israel, displays a humble and awe-inspired attitude towards God. He recognizes that all he has achieved and been blessed with is not due to his own merit or power, but is a result of God's grace and faithfulness towards him. This teaches us the importance of always approaching God with humility, acknowledging our own unworthiness and recognizing that every blessing we have comes from Him.

Another theme present in this passage is the faithfulness of God. David is amazed that God has chosen to bless him and his family for generations to come. This demonstrates the enduring faithfulness of God towards His people, fulfilling His promises and showing grace and favor despite our shortcomings. This serves as a reminder that we can always trust in God's steadfast love and faithfulness, even when we feel undeserving.

The context of this passage is important to understand its significance. At this point in David's life, he had brought the ark of the covenant to Jerusalem and had expressed the desire to build a permanent temple for God. However, God tells him through the prophet Nathan that he will not build the temple, but instead, his son Solomon will build it. Despite this, God promises to establish David's throne and his kingdom forever, pointing to the future coming of the Messiah who will reign eternally.

The symbolism in this passage is powerful. David sitting before the Lord signifies his position of submission and reverence before God. It also symbolizes the intimacy of David's relationship with God, being able to approach Him and pour out his heart in humility. The house of David represents the Davidic dynasty, which will eventually lead to the birth of Jesus Christ, the ultimate fulfillment of God's promise to establish an eternal kingdom. The passage also symbolizes the unwavering faithfulness and grace of God towards His people, despite their imperfections and shortcomings.

In conclusion, 1 Chronicles 17:16-17 is a beautiful expression of David's humility and gratitude towards God, as well as a testament to God's enduring faithfulness and grace. It serves as a powerful reminder for us to approach God with humility, recognizing His faithfulness and trusting in His promises. The passage's significance within the context of David's life and the broader biblical narrative, as well as its rich symbolism, further emphasize its profound message of God's faithfulness towards His people.