I think it is important. Important enough that it is mentioned in scripture.
Hebrews 10 NKJV
24 And let us consider one another in order to stir up love and good works,
25 not forsaking the assembling of ourselves together, as is the manner of some, but exhorting one another, and so much the more as you see the Day approaching.
Acts 2 NKJV
42 And they continued steadfastly in the apostles’ doctrine and fellowship, in the breaking of bread, and in prayers.
43 Then fear came upon every soul, and many wonders and signs were done through the apostles.
44 Now all who believed were together, and had all things in common,
45 and sold their possessions and goods, and divided them among all, as anyone had need.
46 So continuing daily with one accord in the temple, and breaking bread from house to house, they ate their food with gladness and simplicity of heart,
47 praising God and having favor with all the people. And the Lord added to the church daily those who were being saved.
1 Corinthians 12 NKJV
12 For as the body is one and has many members, but all the members of that one body, being many, are one body, so also is Christ.
13 For by one Spirit we were all baptized into one body—whether Jews or Greeks, whether slaves or free—and have all been made to drink into one Spirit.
14 For in fact the body is not one member but many.