Passage
And thy house shall be faithful, and thy kingdom for ever before thy face, and thy throne shall be firm for ever.
And thy house shall be faithful, and thy kingdom for ever before thy face, and thy throne shall be firm for ever.
2 Samuel 7:14 I will be to him a father, and he shall be to me a son: and if he commit any iniquity, I will correct him with the rod of men, and with the stripes of the children of men.
2 Samuel 7:15 But my mercy I will not take away from him, as I took it from Saul, whom I removed from before my face.
2 Samuel 7:16 And thy house shall be faithful, and thy kingdom for ever before thy face, and thy throne shall be firm for ever.
2 Samuel 7:17 According to all these words and according to all this vision so did Nathan speak to David.
2 Samuel 7:18 And David went in, and sat before the Lord, and said: Who am I, O Lord God, and what is my house, that thou hast brought me thus far?
The verse centers on "faith", "house", "shall", "faithful", "kingdom", "ever", "before", and "face". It is saying that the verse draws attention to "faith" and "house", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 15's "But my mercy I will not take..." into verse 17's "According to all these words and according...", so "faith" and "house" belong inside that flow. In 2 Samuel context, the local focus is covenant, worship, and faithfulness.
A plain takeaway is to answer the verse's own emphasis on "faith" and "house" with trust shaped by these words, not by a vague optimism outside the passage.