We have discussed how ideas are non-material. Language is the way that ideas are communicated. Ideas can be communicated by many different languages. Languages are also non-material but the information contained in the message is conveyed by material objects such as paper and ink, light flashes and so on. In order to convey a message, there must be some agreed conventions (spelling, grammar, syntax, etc) between sender and receiver as to how a set of symbols represents a code into which the message can be packaged.
In the living cell, the DNA sequence is the message, and the nucleotides that make up DNA are the language. The DNA sequence sends the message to the receiver, which is the mRNA in the ribosome that reads the nucleotide code and, with the help of tRNA, translates it into a series of amino acids to form a protein useful to the cell.
It would not help if there was a wonderful sequence of nucleotides in the DNA but no way to translate this information into actual proteins. It is the tRNA synthetase enzyme which knows how to attach the right amino acid at one end of the tRNA so that it matches the triplet code for that amino acid at the other end.
It may seem obvious that DNA is a language that conveys information, but there are a lot of scientists who refuse to recognize the language nature of DNA and that the message is the actual DNA sequence. They do not want to acknowledge the mind behind the creation of the living cell.