Anyone can simply opine/assert. To truly edify, we must thoroughly back things up with Scripture; not just one or two passages but as many as necessary to provide an accurate, holistic picture; not just posting passages out of context but applying proper exegesis and exposition to bring home the relevance of whatever we are sharing.
However, another important tool is the use of prolepsis (or prebuttals). Prolepsis, technically, is a figure of speech (rhetorical device) in which the speaker raises an objection and then proceeds to immediately answer it. However, it generally applies to any attempt to anticipate and then answer possible counters / objections.
The importance of this “device” is that it forces the writer or speaker to consider points that they may have otherwise missed. It should move us to address the arguments of the other side in a clear, comprehensive, and cogent manner. Failure to incorporate proleptic arguments can lead to our commentary appearing one-sided, incomplete, or flat-out erroneous.
The goal is for us to state our point(s) but to also simply ask ourselves “in hearing or reading my words, would the other party likely wonder about this possibly opposing point/proof-text or that? Would someone taking an opposing stance be able to reasonably object, ask sound counter-questions, or otherwise respond in a manner that would legitimately call into question (or completely undermine) my core argument or position?” If the answer to the above is yes, then try to incorporate statements into your initial work to preempt such things, making them unnecessary/moot/asked-and-answered, because you already addressed them in your initial commentary.