assemble is a verb (transitive, intransitive and pronominal) that means put together, approach, join, add, connect, agglomerate.
Furthermore, joining can also mean joining forces and reducing the distance between two elements. Ex: My friends got together to protect me from burglars.
One of the most common expressions with this word is "assembling money", which means saving and saving money. Ex: For five years he saved money to buy a new car.
In the Bible, there are several verses with adjoining or with conjugations of this verb. One of the best known passages talks about lay up treasures in heaven and found in Matthew 6:20: "But lay up for yourselves other treasures in heaven, where moth and rust cannot destroy, and where thieves do not break in and steal."
In this passage from the Sermon on the Mount, Jesus points out the importance of caring and dedicating our life in the things of the Kingdom of God, which last forever, and not in the material things of this world, which are passengers.
join or join
Many people have doubts about usage, specifically between bundling and bundling. The two forms are correct and are synonymous.
Although not considered a misspelled word, aggregating is often a word used more often in informal contexts.