What does the Bible say about being joined to the Lord?

In Zechariah 2:11, it states, 'And many nations shall be joined to the Lord in that day.' This concept of being 'joined' implies a profound relationship where individuals from various backgrounds and nations are united with God. This joining is not merely a superficial association; it denotes a deep, spiritual intertwining, akin to the bond of marriage. The Lord actively brings people from all nations into His covenant, fulfilling the promises made throughout scripture, such as in Genesis and Isaiah, where God's intention to bless the Gentiles is clearly articulated. This signifies that salvation through Christ transcends ethnic and national boundaries, reflecting the heart of God for all humanity.