Salmos 101:2

2. I will behave myself wisely That is, prudently, with thoughtfulness and circumspection.

In a perfect way According to God’s rule, a “way” of uprightness. Choosing the “perfect way” of God’s law, he would walk in it thoughtfully and with understanding.

Oh when wilt thou come unto me This must be understood as a longing for some more special spiritual manifestation of Jehovah’s presence; or, for the more complete fulfilment of the promise relating to the full extent of his dominion; or, particularly, for the removal of the ark from Kirjath to Zion. The last would seem the more probable sense. The removal of the ark and tabernacle to Jerusalem would fix the national worship there, and be of the greatest spiritual and political importance to his government. See on Psalms 78, , 132, and compare David’s words, (2 Samuel 6:9,) “How shall the ark of Jehovah come to me? ” and Exodus 20:24: “In all places where I record my name, I will come to thee and bless thee.” Jerusalem might already, by anticipation, be called “the city of Jehovah,” and because, with his approbation and as his servant, David had there fixed his capital.