In Thy Book
The Word of God declares that God keeps a book in which every thing about us is recorded. God knew about us before we were born. He knows us better than we know ourselves. He knows how we sit down and how we stand. He understands our thoughts before we think them. He designed every part of us and He keeps record of it in His book.
In the Bible lands and times people would save their righteous tears in a bottle to prove to God that they had wept many times for a Godly cause. Psalm 56 says that God's people do not need to save their tears, since things done for the glory of God are placed in "His bottle" and kept on record in "God's book" by God Himself. God keeps record of those who love and think about Him in a book of remembrance that is always before Him.