All nations

Isaiah 56:6–7 (NRSV)
6And the foreigners who join themselves to the LORD, to minister to him, to love the name of the LORD, and to be his servants, all who keep the sabbath, and do not profane it, and hold fast my covenant—
7these I will bring to my holy mountain, and make them joyful in my house of prayer; their burnt offerings and their sacrifices will be accepted on my altar; for my house shall be called a house of prayer for all peoples.

Though God has specifically called the nation of Israel to be his chosen people, he always welcomed other nations to become part of his kingdom. He welcomed all who would choose to follow his ways and keep his covenant. He would accept their sacrifices and invite them to temple, the house of prayer for all nations. We see the heart of God for every person to be a part of his family and experience a joyful life of service and devotion to him. He is not a respecter of persons but has open arms to everyone who desires to become one of his adopted children. The gospel message is the message that will unite all believers in Jesus. As this message is proclaimed throughout the earth everyone will have the opportunity to join God's family and receive the gift of eternal life.