The Lord's invitation is offered and introduced each time we come together to worship God the Father. But, in reality, it is an open invitation of sorts.
Jesus said "Come all you that labor and are heavy laden..." He didn't specify when to come. He didn't specify to come to a certain person in the assembly...He just invited us to all come.
Won't you come and be with us tomorrow as we worship God the Father in spirit...and in truth (John 4:23-24). We would be honored with your presence.