The sword of the Spirit is God’s word (Eph 6:17).
New Revised Standard Version (NRSV)
12 Indeed, the word of God is living and active, sharper than any two-edged sword, piercing until it divides soul from spirit, joints from marrow; it is able to judge the thoughts and intentions of the heart.
The Spirit and God’s word must work together. One cannot function without the other (1 Cor 2:12-16).
Also, there is a tendency for Christians to imagine God’s Spirit as working independently (and supernaturally, perhaps) from humans, and even to think up theories about the Holy Spirit that are based on extra-biblical presumptions.
But realise that just as the Spirit functions together with God’s word, it also functions with the cooperation of humans:
1 Thessalonians 5:19-21
Common English Bible (CEB)
19 Don’t suppress the Spirit. 20 Don’t brush off Spirit-inspired messages, 21 but examine everything carefully and hang on to what is good.
In conclusion: if the sword of the Spirit is God’s word, then Christians who expect the Spirit to work without the Word are asking the Spirit to work without its most powerful tool/weapon! This necessity for God’s word also implies a necessity for cooperation on our part, to read/examine God’s word, so that the Spirit can truly work in and through us.